"This book, with its excellent photographs, is to be recommended to everyone working on the history of salt and salt production and beyond that to everyone interested in the history of culture and technology." -- Technology and Culture
"[Multhauf's] reach is long and his grasp is firm. This work on salt has all the fluency and density of significant detail which make his earlier work, The Origins of Chemistry, so valuable." -- Nature
"A source of much knowledge and an impetus to questions about the mutual rise of science and technology, their differences country by country and period by period, and about the hard issues of externalities and of overdevelopment. Dr. Multhauf writes well, with reflection and a lively, skeptical touch." -- Scientific American
"Neptune's Gift is an excellent work, of importance to the generalist as well as to the specialist, and is deserving of a wide audience." -- American Historical Review