146 Mr. Giorna’s Account, €, 
of the wings of Butterflies, Gc. In this work the ufe and a&ions of 
thefe fprings appear to be well defined and explained; and Mr. 
Harris obferves that it pertains only to the males, the females ha- 
ving, inftead of the fprings, four fmall hairs or briftles: it was 
thought, however, proper to publifh this account, as Mr. Giorna 
has carried the matter further than Mr. Harris, and it is hoped will 
excite others to purfue the fubjeét, 
XV. Olfer- 
