MINUTES OP MEETIN(JS. 119. 



Dr. Garlick exhibited to the meetinfr, under an excellent 

 microscope, an egg of the Salmo Fontinalis^ spawned, 

 artificially, on the 22(1 of October last. Tlie form of the 

 egg was no longer spherical, but was that of an oblate 

 spiieroid, the shorter diameter of which was about one and 

 a half lines, whilst the larger measured about two lines. 

 The appearance of the egg, under the microscope, was very 

 interesting — the eyes of the embryo salmo could readily 

 be discovered with the naked eye ; the heart and its action 

 as well as the arteries and veins, could be seen through the 

 microscope. 



Dr. Garlick placed under the microscope, for the benefit 

 of the members present, a beautiful preparation of the 

 human epidermis, a portion of the mucous coating of the 

 human intestine, a portion of the human kidney properly 

 and beautifully injected, and a v^ell preserved specimen of 

 Sar copies Scahiei and Acarus Sacohari. 



Mr. Palmer exhibited a number of different species of 

 ants, {Formica.) from Paraguay, with portions of their hills 

 or nests, terrestrial and arboreal; also several specimens 

 of a waxy secretion, upon twigs and branches of the guava 

 and other shrubs. Mr. Palmer stated that it was the com- 

 monly received opinion, among the natives of that country, 

 that this waxy matter was the product of the various 

 species of ants then exhibited. He also gave a very inter- 

 esting account of the habits of some of this family of 

 insects, exhibiting a section of an endogenous tree, the 

 hollow stem of which is inhabited by one of these insects. 

 Considerable discussion ensued upon the nature of this 

 secretion, Mr. Kirkpatrick arguing that it was, in general, 

 the product of coccidce^ and in some cases was apparently 

 produced by the exudation of the sap of the plant, from 

 the punctures of insects of the latter family. One of the 

 specimens exliibited was evidently a parasitic fungi, exhib- 

 iting, under the microscope, an organic structure. The 

 wax, when magnified, presented a crystaline texture, and, 

 embeclded in some specimens of it, were a number of dark 



