PREFACE. Vii 



and author of many works in medicine, and the sciences 

 connected with it. Those on Anatomy, Comparative. 

 Anatomy, the Natural History of Man, Physiology, 

 Surgery, &c. were drawn up by W. LAWRENCE, Esq. 

 of St. Bartholomew's Hospital. 



To a very ingenious pupil of Dr. SMITH, the celebra- 

 ted President of the Linnean Society, we are indebted 

 for the introductory treatise on Botany. Dynamics, Hy- 

 draulics, Music, Fortification, Perspective, and many 

 other articles in Mathematics and Experimental Philo- 

 sophy; and also those on Farriery and Gardening, were 

 composed by Capt. WILLIAMSON, a gentleman well 

 known to the literary and philosophical world. The ar- 

 ticles Distillery and Galvanism were written by Mr. 

 SYLVESTER of Derby, whose discoveries in the latter 

 new and promising department of experimental research 

 are well known to philosophers. To W. Y. OTTLEY, 

 Esq. we acknowledge ourselves indebted for the article 

 Painting. And to Mr. J. P. MALCOLM, author of" The 

 Antiquities of London," are to be ascribed those on 

 Heraldry, Topography, and other articles connected 

 with the Arts. 



JAMES PARKINSON, Esq. author of an elaborate and 

 extensive work on the " Organic Remains of a former 

 World," composed the articles Geology, Oryctology, 

 Rocks, and Shells, which appear in this Dictionary. 

 Those on Dyeing, and on the Manufacture of Cotton, 

 deduced from actual observation, with several oilier* 

 relating to practical Mechanics, and subjects of a mixed 

 nature, were furnished by W. BOSWELL, Esq. ; and 

 those on Weaving and Short-hand by Mr. NIGHTIN- 

 GALE. Mr. PETER NICHOLSON is the author of the 



