SECTION V. — CHEMISTRY, PURE AND APPLIED. 907 



Webster, John. 

 * Metallographia, or an history of Metals. Wherein is declared the 

 signs of ores and minerals both before and after digging, the causes 

 and manner of their generations, their kinds, sorts, and differences ; 

 with the description of sundry new metals, or semi-metals, and 

 many other things pertaining to mineral knowledge. As also, the 

 handling and shewing of their vegetability, and the discussion of 

 the most difficult questions belonging to mystical chemistry ; as of 

 the Philosophers gold, their mercury, the liquor alkahest, aurum 

 potabile and such like. Gathered forth of the most approved 

 that authors have written in Greek, Latine, or High Dutch ; with 

 some observations and discoveries of the author himself. London, 

 167 1, pp. (xvi)-388, sm. 4to. 



Not so prolix a work as the title suggests. The author is, however, credu- 

 lous, a follower of Paracelsus and a believer in hermetic mysteries. 



Webster, John White. 



A Manual of Chemistry, containing the principal facts of the science in 

 the order in which they are discussed and illustrated in the lectures 

 at Harvard University, and several other colleges and medical 

 schools in the United States. Compiled and arranged as a text- 

 book for the use of students, and persons attending lectures on 

 chemistry. Third edition, comprising a summary of the latest dis- 

 coveries as contained in the works of Brande, Turner, Thomson 

 and other distinguished chemists, illustrated with upwards of two 

 hundred engravings on wood. Boston, 1839. PP- '^^i~554> ^^o. 



First edition, Boston, 1S26. Second edition, Boston, 182S. pp. viii-619. 



The author was hanged Nov. 23, 1849, for the murder of Dr. Parkman. 



Webster, N. B. 



Outlines of Chemistry for Agricultural Colleges, public and private 

 schools, and individual learners. New York, 1883. 32mo. 



Wedderburn, Alex. J. 



Popular (A) Treatise on the Extent and Character of Food Adultera- 

 tions. Bulletin No. 25, Division of Chemistry, U. S. Department 

 of Agriculture. Washington, 1890. 8vo. 

 Special Report on the Extent and Character of Food Adulterations, in- 

 cluding State and other laws relating to foods and beverages. 

 Bulletin No. 32, Division of Chemistry, U. S. Department of 

 Agriculture. Washington, 1892. 8vo. 



Wedding, Hermann. 



AusfUhrliches Handbuch der EisenhUttenkunde. See Percy, John : Die 

 Metallurgie, vol. II. 



