Inhaltsangabe
This historic book may have numerous typos, missing text or index. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. 1903. Not illustrated. Excerpt: ... The present work on Scomber was begun in my laboratory, in February, 1892, by Dr. J. Dewitz, and was continued, unfortunately With frequent interruptions, until the spring of 1898. Since then Mr. Jujiro Nomura has been engaged upon it, almost 'corftSnuously, until the present time, his work being the preparaUiott of the drawings used for illustration and also the preparation of the dissections relating to the brain and to the roots and apparent origins of the nerves. In all of Dr. Dewitz's dissections the brain was so badly preserved that it disintegrated, leaving the roots of the nerves detached. Those drawings that do not relate to the brain are some of them copies of Dr. Dewitz's sketches; others, those relating to the skull, are made from Dr. Dewitz's preparations; while still others are from dissections prepared by Mr. Nomura, guided by Dr. Dewitz's sketches. Soon after this work was begun by Dr. Dewitz, a similar work was started, by other assistants I had engaged for the purpose, on several other teleosts, my intention being to have the cranial . anatomy of some ten or fifteen teleosts and ganoids carefully investigated; my work on Amia having convinced me that, in all questions relating to the morphology of the head, an exact knowledge of the anatomy of the adult fish should precede any embryological investigation of it. This purely anatomical knowledge could, I was well aware, be, to a great extent, derived from the study, by sections, of advanced larvae, a method that is certainly much more enticing and perhaps much quicker. But dissections of the adult must still often be referred to for completeness or for control; and, moreover, those dissections offer the great advantage of the possibility of proper illustration. I had accordingly decided to have t...
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