W e g black (15 Ergebnisse)
Verlag: Jamaica Geological Survey Department Economic Geology Rept. 4, 1972, 24 pp. + 6 folded plates in pocket (Geological Survey of Jamaica Publ. 115)., 1972
- Softcover
Anbieter: Eryops Books, Stephenville, TX, USAEryops Books
Verkäufer/-in kontaktierenVerkäufer/-in mit 5 SternenZustand: Gebraucht - Gut
EUR 6,65
EUR 5,16 VersandVersand innerhalb von USAAnzahl: 1 verfügbar
In den WarenkorbSoft Cover. Zustand: Very Good. ORIGINAL PUBLICATION; Softcovers; corners of wraps and pages lightly creased; o/w in very good condition.

- Softcover
Anbieter: PBShop.store US, Wood Dale, IL, USAPBShop.store US
Verkäufer/-in kontaktierenVerkäufer/-in mit 5 SternenZustand: Neu
EUR 26,17
Versand gratisVersand innerhalb von USAAnzahl: 15 verfügbar
PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

- Softcover
Anbieter: PBShop.store UK, Fairford, GLOS, Vereinigtes KönigreichPBShop.store UK
Verkäufer/-in kontaktierenVerkäufer/-in mit 5 SternenZustand: Neu
EUR 25,49
EUR 3,83 VersandVersand von Vereinigtes Königreich nach USAAnzahl: 15 verfügbar
PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

- Hardcover
Anbieter: PBShop.store US, Wood Dale, IL, USAPBShop.store US
Verkäufer/-in kontaktierenVerkäufer/-in mit 5 SternenZustand: Neu
EUR 35,63
Versand gratisVersand innerhalb von USAAnzahl: 15 verfügbar
HRD. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

- Hardcover
Anbieter: PBShop.store UK, Fairford, GLOS, Vereinigtes KönigreichPBShop.store UK
Verkäufer/-in kontaktierenVerkäufer/-in mit 5 SternenZustand: Neu
EUR 33,90
EUR 4,85 VersandVersand von Vereinigtes Königreich nach USAAnzahl: 15 verfügbar
HRD. Zustand: New. New Book. Shipped from UK. Established seller since 2000.
British Birds: The Out-Door World Library
W.H. Hudson, with a chapter on structure and classification by Frank E. Beddard
Verlag: Longmans, Green, and Co., London, New York, Bombay, and Calcutta, 1911
- Hardcover
Anbieter: Ryde Bookshop Ltd, Isle of Wight, Vereinigtes KönigreichRyde Bookshop Ltd
Verkäufer/-in kontaktierenVerkäufer/-in mit 5 SternenZustand: Gebraucht - Ausreichend
EUR 7,20
EUR 23,25 VersandVersand von Vereinigtes Königreich nach USAAnzahl: 1 verfügbar
In den WarenkorbHardcover. Zustand: Fair. Loosely bound, gilt decorated red cloth boards. Chipping, fading and marks on the spine. Dust spotting on cover. No jacket. With 8 coloured plates from original drawings by A. Thorburn and 8 plates and100 figures in black and white from original drawings by G.E. Lodge and 3 illustrations from photograph…s from nature by R.B. Lodge (illustrator).
THE ROMANCE OF NAVIGATION
Captain W. B. Whall (Edited by Francis E. McMurtrie with a Foreword by Rear-Admiral E.R.G.R. Evans)
Verlag: Sampson Low Marston & Co. Ltd, London
- Hardcover
Anbieter: beckfarmbooks, HOLT, Norfolk, Vereinigtes Königreichbeckfarmbooks
Verkäufer/-in kontaktierenVerkäufer/-in mit 3 SternenZustand: Gebraucht - Befriedigend
EUR 11,41
EUR 26,21 VersandVersand von Vereinigtes Königreich nach USAAnzahl: 1 verfügbar
In den WarenkorbHardcover. Zustand: Good. No Jacket. 244pp bound in the Publisher's faded blue cloth starting to split at the spine. Coloured frontis. and many photographs. Clean internally and unmarked with no inscription. Undated but 1930's. Thick 8vo. Black & White photographs (illustrator).
Science In Progress. First Series
Baitsell, George A. (Editor); Shapley, Harlow (Foreword), Ernest O. Lawrence, Harold C. Urey, W. M. Stanley, L. O. Kunkel, Karl E. Mason, R. R. Williams, Edgar Allen, Theophilus S. Painter, E. Newton Harvey, Francis G. Benedict
Sprache: Englisch
Verlag: Yale University Press, New Haven, 1939
- Hardcover
- Erstausgabe
Anbieter: Arroyo Seco Books, Pasadena, Member IOBA, Pasadena, CA, USAArroyo Seco Books, Pasadena, Member IOBA
Verkäufer/-in kontaktierenVerkäufer/-in mit 4 SternenVerbandsmitglied: IOBA
Zustand: Gebraucht - Gut bis sehr gut
EUR 91,22
EUR 6,88 VersandVersand innerhalb von USAAnzahl: 1 verfügbar
In den WarenkorbBlue Cloth. Zustand: Near Fine. Zustand des Schutzumschlags: Very Good. First Edition. 322 Clean, Unmarked Pages. Lightly Used, Touches Of Rubbing At Edges, Spine Gilt Lettering Clean And Brilliant.Small Metro-Goldwyn Mayer Library Stamp At Bottom Of Front Free Endpaper, No Other Damage Or Marks. Dust Jacket With Light Wear, Sma…ll Edge Chips, 5/8" V-Chip At Bottom Of Rear Panel, Price Clipped, Three Small Corner Creases On Flaps. . Illustrated With Black And White Photographs, Equations, Diagrams And Charts (illustrator).

- Softcover
Anbieter: moluna, Greven, Deutschlandmoluna
Verkäufer/-in kontaktierenVerkäufer/-in mit 5 SternenZustand: Neu
EUR 48,37
EUR 48,99 VersandVersand von Deutschland nach USAAnzahl: Mehr als 20 verfügbar
Zustand: New.
Weitere BilderSaving grace : our second 1961 book for singing schools, convention, etc. [Stamps-Baxter convention books, 1961, no. 2, 1961, no. 2]]
J. R. Jr Baxter; VO Fossett, JB Coates, Lonnie Combs, Wilbur Wilson, BI CLine, Terry Pillow, JA Collier, HOrace Kennedy, JOhn E Hull, J Oscar Grace, Travis Bottoms, PJ Woodard, J Daniel Williams, CH Culbreth, Carl Story, Wsalter Edmiaston, WM DeVaughn, Y Jefford, John Kendall, Lester Williams, OC Boone, OC Pennington, Clarence Todd, Buell Thompson, N Keith Ledsome, Dorothy Waldrop, US Lindsey, HE Upchurch, HA Johnson, Mrs Jo Simpson Chambers, Mrs ME Pearce, Byron Pollard, Thelma M Jordan, Eugene Whitt, Robert Arnold, GT Speer, Ellis Short, SL Wallace, J Lawrence Deavers, Conklin Belknap, Glen Presley, OA Hunt, Eugene Dalton, Pat Baxter, Orgel Mason, Clarence Heidelberg, Burl Carter, Jesse W Baker, RT Black, Gordon Ross, Ezra Knight,
Verlag: Stamps-Baxter Music and Print. Co., Dallas, TX, 1961, 1961
- Softcover
Anbieter: Joseph Valles - Books, Stockbridge, GA, USAJoseph Valles - Books
Verkäufer/-in kontaktierenVerkäufer/-in mit 5 SternenZustand: Gebraucht - Befriedigend
EUR 53,15
EUR 14,58 VersandVersand innerhalb von USAAnzahl: 1 verfügbar
In den WarenkorbSoft cover. Zustand: Good. No Jacket. 1 close score (unpaged, 138 hymns) ; 20 cm ; worn and foxed stiff paper wrappers ; Authors and composers: J. R. Jr Baxter; VO Fossett, JB Coates, Lonnie Combs, Wilbur Wilson, BI CLine, Terry Pillow, JA Collier, HOrace Kennedy, JOhn E Hull, J Oscar Grace, Travis Bottoms, PJ Woodard, J Daniel…Williams, CH Culbreth, Carl Story, Wsalter Edmiaston, WM DeVaughn, Y Jefford, John Kendall, Lester Williams, OC Boone, OC Pennington, Clarence Todd, Buell Thompson, N Keith Ledsome, Dorothy Waldrop, US Lindsey, HE Upchurch, HA Johnson, Mrs Jo Simpson Chambers, Mrs ME Pearce, Byron Pollard, Thelma M Jordan, Eugene Whitt, Robert Arnold, GT Speer, Ellis Short, SL Wallace, J Lawrence Deavers, Conklin Belknap, Glen Presley, OA Hunt, Eugene Dalton, Pat Baxter, Orgel Mason, Clarence Heidelberg, Burl Carter, Jesse W Baker, RT Black, Gordon Ross, Ezra Knight, Harold Ables, Edwin Jones Roy Orr, W K Buck Compelube, Mrs Wilbur Wilson, Charles L Wright, Sr., Elmer L Ward, Johnnie Gilmore, Mrs. Minnie Bynum, Edna Jean Dixon Coy, Lola Fisher Bordner, RT Griffin, Ed Benson, Luther G Presley, Dwight Brock, Clyde Williams, Marvin P Dalton, John L Shrader, Marion W Easerling, JR Varner, Dewey Belknap, Floyd E Hunter, J Otis Murphree, Henry L Thompson, TO Atkins, MB Hooton, Luther M Hutchins, Daniel T Cockerham, Isaiah Smith, CR Maddox, ME Pearce, ET Isbell, Joe L Arterbury, Thomas C Duckworth, Thurmon E Cofffey, Bruce Thornhill, JA Jim Black, James L Glover, Mrs. OC Boone, CM Webb, Bill Stewart Jr., Albert F Hendrix, Mrs Ellis Short, jr, Mrs J Edwin Powell, Judy Hopper Moody, Otis L Reynolds, C C Clements ; Partial Contents: When the morning light shines in / James Rowe ; JR Baxter Jr--Hear the angels sing again / Hattie Pope ; Albert F Hendrix --The call of the savior / Rupert Cravens ; Rev. & Mrs John E Hull --He's wonderful / JM.Watson --A precious friend / Travis Bottoms --A friend indeed / Walter E Edmiaston ; OA Hunt --Our great king / N Keith Ledsome --He is a wonderful friend / Rupert Cravens ; Ezra H Knight --The journey of no return / Luther G Presley --Sing hallelujah / BI Cline --Steal away and pray / LW & C ; Lester Williams --I'm going home / JA (Jim) Black --We'll live up there / Glen T Presley --May the lord keep you / W Oliver Cooper ; Mrs ME Pearce --Jesus, the only name / BB Edmiaston ; CH Culbreth --Wonderful homecoming day / Horace A Kennedy Glory we'll see / Roy Orr --I know, I know that he is mine / GT Speer --Let Jesus come in to stay / VO Fossett --Jesus is coming again / J.R. Varner --I hold to the life-line / JM Henson ; SL Wallace --He will hold my hand / J Otis Murphree --There'll be no silent voices / US Lindsey --Faith removes mountains / BB Edmiaston ; JA Collier --Victor over our foes / BB Edmiaston ; JA.Collier --Memories of home / Harold B Ables --Mother / Thomas Ramsey ; JB Coats --I want to hear him say well done / GT Speer --Where could I go? / J.B. Coats --Trust in Jesus / Eugene H Whitt --Sing for him / Bill Hopper ; Judy Hopper Moody --Jesus wants you / Mr. & Mrs Ellis Short, Jr --At last I'm on the way / Mrs CM Weatherford ; Burl Carter --God made all things / Johnnie Gilmore --Amazing grace / John Newton & JRK ; John R Kendall Go tell about Jesus / Jesse W Baker Let me sing and testify / Luther G Presley It is later than you think / J. Daniel Williams He's coming, I tell you / Gordon Ross Lord, lead me / JB Coats ; WM DeVaughn A better home / OC Pennington That's why I think about God / JB Coats Turn back to the lord / BB Edmiaston ; Thurman E Coffey I'm saved by love / Luther G Presley Lay up treasures / BB Edmiaston ; Thomas C Duckworth Press along, o weary pilgrim / Thomas R Wilson ; CM Webb I need the lord all the time / BB Edmiaston ; Clyde Williams Be ye ready for his coming / Eugene H Whitt Safe in the fold / W.Hindmon ; Charles L Wright Sr Let me sing love's melody / BB Edmiaston ; Edwin Jones Crown him king / M Hooton ; G. Book.
The Journal Of Symbolic Logic. Volume 9 Number 1. March 1944 [With Several Reviews By Rozsa Peter]
Church, Alonzo, And Ernest Nagel (Editors); C. A. Bayliss, Paul Bernays, G. D. W. Berry, Evert Beth, Max Black, F. D. Fitch, Carl G. Hempel, Lazslo Kalmar, C. H. Langford, J. C. C. Mckinsey, Everett J. Nelson, Rozsa Peter, H. E. Vaughan (Consulting Editios:Jozef Pepis And C. West Churchman (Articles0
Sprache: Englisch
Verlag: Association for Symbolic Logic, Menasha / Ann Arbor, 1944
- Softcover
- Erstausgabe
- Magazin//Zeitschrift
Anbieter: Arroyo Seco Books, Pasadena, Member IOBA, Pasadena, CA, USAArroyo Seco Books, Pasadena, Member IOBA
Verkäufer/-in kontaktierenVerkäufer/-in mit 4 SternenVerbandsmitglied: IOBA
Zustand: Gebraucht - Gut bis sehr gut
EUR 261,29
EUR 6,88 VersandVersand innerhalb von USAAnzahl: 1 verfügbar
In den WarenkorbGrey Wrappers. Zustand: Near Fine. First Edition. Volume 9 No 1, 32 Pp. Scarce In This, The Original Publication State Of Gray Printed Wrappers. Near Fine. Contains Rozsa's Reviews (In German) Of Articles By Skolem, Psposil, Suranyi, And Of Two Articles By Laszlo Klmar. Rózsa Péter, Born Rózsa Politzer, (1905 - 1977) Was A Hunga…rian Mathematician And Logician. She Is Best Known As The "Founding Mother Of Recursion Theory". Initially, Péter Began Her Graduate Research On Number Theory. Upon Discovering That Her Results Had Already Been Proven By The Work Of Robert Carmichael And L. E. Dickson, She Abandoned Mathematics To Focus On Poetry. However, She Was Convinced To Return To Mathematics By Her Friend László Kalmár, Who Suggested She Research The Work Of Kurt Gödel On The Theory Of Incompleteness.[3] She Prepared Her Own, Different Proofs To Gödel's Work. Péter Presented The Results Of Her Paper On Recursive Theory, "Rekursive Funktionen," To The International Congress Of Mathematicians In Zurich, Switzerland In 1932. For Her Research, She Received Her Phd Summa Cum Laude In 1935. In 1936, She Presented A Paper Entitled "Über Rekursive Funktionen Der Zweiten Stufe" To The International Congress Of Mathematicians In Oslo.[3] These Papers Helped To Found The Modern Field Of Recursive Function Theory As A Separate Area Of Mathematical Research. In 1937, She Was Appointed As Contributing Editor Of The Journal Of Symbolic Logic. After The Passage Of The Jewish Laws Of 1939 In Hungary, Péter Was Forbidden To Teach Because Of Her Jewish Origin And Was Briefly Confined To A Ghetto In Budapest. During World War Ii, She Wrote Her Book Playing With Infinity: Mathematical Explorations And Excursions, A Work For Lay Readers On The Topics Of Number Theory And Logic. In 1952, She Was The First Hungarian Woman To Be Made An Academic Doctor Of Mathematics. After The College Closed In 1955, She Taught At Eötvös Loránd University Until Her Retirement In 1975. She Was A Popular Professor, Known As "Aunt Rózsa" To Her Students. In 1951, She Published Her Key Work, Recursive Functions (Rekursive Funtionen). She Continued To Publish Important Papers On Recursive Theory Throughout Her Life. Beginning In The Mid-1950S, Péter Applied Recursive Function Theory To Computers. Her Final Book, Published In 1976, Was Recursive Functions In Computer Theory. Originally Published In Hungarian, It Was The Second Hungarian Mathematical Book To Be Published In The Soviet Union Because Its Subject Matter Was Considered Indispensable To The Theory Of Computers. It Was Translated Into English In 1981.Péter Was Awarded The Kossuth Prize In 1951. She Received The Manó Beke Prize By The János Bolyai Mathematical Society In 1953, The Silver State Prize In 1970, And The Gold State Prize In 1973. In 1973, She Became The First Woman To Be Elected To The Hungarian Academy Of Sciences.
Verlag: Department of Genetics, University of Wisconsin, 1951
Anbieter: Robinson Street Books, IOBA, Binghamton, NY, USARobinson Street Books, IOBA
Verkäufer/-in kontaktierenVerkäufer/-in mit 4 SternenVerbandsmitglied: IOBA
Zustand: Gebraucht - Ausreichend
EUR 66,43
EUR 8,17 VersandVersand innerhalb von USAAnzahl: 1 verfügbar
In den WarenkorbOffprint Pamphlet. Zustand: Acceptable. Prompt Shipment, shipped in Boxes, Tracking PROVIDEDAcceptable, offprint with original paper casing, stapled spine, pencil/pen writing and name stamp on cover, underline marks on page, minor discoloration spots, reprinted from Endocrinology Vol 49 No 4 pp 474-480, Image Scan Available Requ…est.

The Wide World Magazine - The Magazine for Everybody, Vol. XLIV - No. 261, January (Jan.) 1920 - Two Balloonatics
Brand, J.B.; Bourne, George;Franck, H.A.; Yerburgh, The Rev. W.H.B.; White, Capt. T.W.; Thomason, Hugh; Pocock, R.; Chinnery, E.W.P.; Mander, Lionel; McMahon, (MeMahon?) T.J.; Et al
Verlag: George Newnes, Ltd., London, 1920
- Softcover
- Erstausgabe
Anbieter: RareNonFiction, IOBA, Ladysmith, BC, KanadaRareNonFiction, IOBA
Verkäufer/-in kontaktierenVerkäufer/-in mit 5 SternenVerbandsmitglied: IOBA
Zustand: Gebraucht - Ausreichend
EUR 261,30
EUR 17,19 VersandVersand von Kanada nach USAAnzahl: 1 verfügbar
In den WarenkorbSingle Issue Magazine. Zustand: Fair. First Edition. Pages 177-272, plus 16 pages of great ads. Features: The Blue Bandits - Part 1 - Elusive thieves operate in the Franco-Italian villages on either side of the frontier in the French department of the Hautes Alpes and the Italian district of Monte Viso; How I Lost My Christmas D…inner - hilarious story of a Christmas spent with the Maori adherents of self-styled "prophet" Rua - article with photos; On Foot Through South America - Part 2 - photo-illustrated account of Harry A. Franck's visit to Quito and his tramp through Ecuador; The Last Voyage of H.M.S. "Drake" - a vivid glimpse of the perils of convoy work and the "price of Admiralty"; ; The Trials of a Naturalist's Wife - Part 1; My Two Years' Captivity Among the Turks - Part 1of Airman Capt. T.W.White's adventures and daring escape; The Moonshiners - what happened when the author stumbled into a camp of Tennessee moonshiners; Photo of thousands of snakes at breeding time in the Klamath Falls, Oregon area; The Wonderland of the Arctic - description of a trip to Danish Greenland, with photos; In Quest of Cannibals - Part 3 - exploration and adventure in unknown New Guinea; Photo of German "Death Clock" constructed primarily of skulls and other bones; Two Balloonatics - an exciting balloon adventure from just before the war (WWI); Treasure Island - great photo-illustrated article about the remote South Pacific island of Nauru; The Mad Millionaire - how vast wealth came unexpectedly to a poor Mexican Indian, and the tragedy that ensued; The Sacred Mountain - photo-illustrated account of a picturesque Tibetan pilgrimage; The Resurrection of "Red" Wilson - an exciting story of the old days in the south-west, when the Apaches were still a terror in the land; Photo of a lakatoi (lakatois) New Guinea boat. Somewhat above-average wear. Unmarked. A worthy copy of this great vintage issue. Robinson, T.H.; Gillett, F.; Horne, A.E.; Cleaver, Ralph; Brightwell, L.R.; Prater, Ernest; Tennant, Dudley; Webb, Arch.; Black, A. & M.; Soper, G.; Coller, Hy. (illustrator).
Du Rapport entre le pouvoir émissif et le pouvoir absorbant des Corps pou la Chaleur et la Lumière. Traduit de l'allemand par Georges Leclanche.
KIRCHHOFF, G. (GUSTAV ROBERT).- THE KEY TO THE NEW WORLD OF QUANTA - INTRODUCING "BLACK-BODY RADIATION"
- Softcover
- Erstausgabe
Anbieter: Herman H. J. Lynge & Søn ILAB-ABF, Copenhagen, DänemarkHerman H. J. Lynge & Søn ILAB-ABF
Verkäufer/-in kontaktierenVerkäufer/-in mit 4 SternenZustand: Gebraucht
EUR 757,85
Versand gratisVersand von Dänemark nach USAAnzahl: 1 verfügbar
In den WarenkorbParis, Victor Masson et Fils, 1861. Without wrappers. In: "Annales de Chimie et de Physique", 3e Series - Tome 62, Cahier Juin 1861. Titlepage to vol. 62. Pp. 129-256. (The entire issue offered). Kirchhoff's paper: pp. 160-192. Small stamps to verso oftitlepage. First French edition of a milestone paper by "The Grandfather of Qu…antum Theory" in which he formulates the law named after him, "KIRCHHOFF'S LAW", which was the "key to the whole thermodynamics of radiation. In the hands of Planck, Kirchhoff's successor to the Berlin chair, it proved to be the key to the new world of the quanta, well beyond Kirchhoff's conceptual horizon."(DSB, VII, p.382)."Kirchhoff's Law of Thermal Emission was formulated in 1859 (Über das Verhältnis.) - the paper offered here in the first French version. It is at the same time the simplest and least understood law in physics. Kirchhoff's law states that given thermal equilibrium with an enclosure, the radiation inside will be always black, or normal, in a manner which is independent of the nature of the walls, or the objects they contain. This is known as the concept of universality. That is, that radiation within an enclosure can always be described by a universal function dependent only ontemperature and frequency. This universal function was first given us by Max Planck, in 1900. Kirchhoff's law STANDS AT THE HEARTH OF ALL MODERN ASTROPHYSICS. It is the basis for setting the temperature of the stars, for the gaseous model of the Sun, and for believing that we now know the temperature of the entire universe."(Pierre-Marie Robitaille).The research background for the paper was his unexpected observation that if the intensity of the solar spectrum increased above a certain limit, the dark D lines were made much darker by the interposition of the sodium flame. he instantly felt, that he had got hold of "something fundamental". Another notable, and importent paper in the development of photography, is in the same issue ALPHONSE POITEVIN "De l'Action chimique de la Lumiere sur les Substances organiques. Son emploi à l'impression photographique."Pp. 192-210.

Über das Verhältnis zwischen dem Emissionsvermögen und dem Absorptionsvermögen der Körper für Wärme und Licht. (On the relation between the radiating and the absorbing powers of different bodies for light and heat). (+) Über die Frauenhofer'schen Lin.
KIRCHHOFF, G. (GUSTAV ROBERT).- THE KEY TO THE NEW WORLD OF QUANTA - INTRODUCING "BLACK-BODY RADIATION"
- Hardcover
- Erstausgabe
Anbieter: Herman H. J. Lynge & Søn ILAB-ABF, Copenhagen, DänemarkHerman H. J. Lynge & Søn ILAB-ABF
Verkäufer/-in kontaktierenVerkäufer/-in mit 4 SternenZustand: Gebraucht
EUR 2.066,87
Versand gratisVersand von Dänemark nach USAAnzahl: 1 verfügbar
In den WarenkorbLeipzig, Johann Ambrosius Barth, 1860. Contemp. hcalf, raised bands, gilt spine. A few scratches to spine. In "Annalen der Physik und Chemie. Hrsg. von J.C. Poggendorff", Bd. 109. X,660 pp. and 4 folded engraved plates. Kirchhoff's papers: pp. 275-301 and pp. 148-150. Internally clean and fine. Small stamps to verso of titlepage… and plates. First printing of a milestone paper by "The Grandfather of Quantum Theory" in which he formulates the law named after him, "KIRCHHOFF'S LAW", which was the "key to the whole thermodynamics of radiation. In the hands of Planck, Kirchhoff's successor to the Berlin chair, it proved to be the key to the new world of the quanta, well beyond Kirchhoff's conceptual horizon."(DSB, VII, p.382)."Kirchhoff's Law of Thermal Emission was formulated in 1859 (Über das Verhältnis.) - the paper offered. It is at the same time the simplest and least understood law in physics. Kirchhoff's law states that given thermal equilibrium with an enclosure, the radiation inside will be always black, or normal, in a manner which is independent of the nature of the walls, or the objects they contain. This is known as the concept of universality. That is, that radiation within an enclosure can always be described by a universal function dependent only ontemperature and frequency. This universal function was first given us by Max Planck, in 1900. Kirchhoff's law STANDS AT THE HEARTH OF ALL MODERN ASTROPHYSICS. It is the basis for setting the temperature of the stars, for the gaseous model of the Sun, and for believing that we now know the temperature of the entire universe."(Pierre-Marie Robitaille).The research background for the paper was his unexpected observation that if the intensity of the solar spectrum increased above a certain limit, the dark D lines were made much darker by the interposition of the sodium flame. he instantly felt, that he had got hold of "something fundamental". These observations are described in the second paper offered here "Über die Frauenhofer'schen Linien." which was published first in 1859 in Monatsschrift der Berliner Academie.The volume contains many other importent papers in physics and chemistry, by C.F. Schönbein, Zöllner, H. Fizeau, Eisenlohr, W. Heine, Knoblauch, K.G. Neumann, W. Siemens etc.