1919 ENTOMOLOGICAL SOCIETY 



The title of Swammerdani's work is entitled as follows: — 

 THE BOOK OF NATUEE; 



OR, THE 



HISTORY OF INSECTS: 



Eeduced to distinct CLASSES, confirmed by particular INSTANCES, Displayed 

 in the Anatomical Analysis of many Species. 



and 



Illustrated with Copper-Plates 



including 



The Generation of the Frog, the History of the Ephemerus, the Changes of Flies, 



Butterflies and Beetles : 



with the • 



Original Discovery of the Milk Vessels of the Cuttlefish, and many other 



curious Particulars 



By Johx Swammerdam, M.D. 



with 



The Life of The Author, By Herman Boerhaave, M.D. 



Translated from the Dutch and Latin Original Edition, 

 By Thomas Flloyd. 



Revised and Improved by Notes from Eeaumur and others, 

 By John Hill, M.D. 



LdSTDON : 



Printed for C. G. Seyfret, Bookseller, in Dean Street, Solio. 



MDCCLVIII. 



He studied the phenomena of metamorphosis, and showed that the butterfly is 



contained within the chrysalis, and that the organs of the latter are developed in 



tlie caterpillar. He emphasized the point that the various changes do not occur 



, suddenly. He distinguished between metamorphosis and moulting. Moreover,' 



he opposed the idea of spontaneous generation. 



The 18th century produced Pierre Lyonnet (1707-1789) of Holland, who 

 surpassed all his predecessors in minute dissection. His memoir on the Goat or 

 Willow Moth, {Cossus Ugniperda), published in 1750, will always remain a classic 

 of insect anatomy. It contains 18 quarto plates with 137 figures, but the text 



