210 The Microscope. 



4. Kidney of the cat (injected, showing blood supply). 



5. Muscle of the cat (injected). 



6. Villi of the small intestine of the cat (injected). 



7. Human spinal cord (Weigert's method of staining.) 



In the remarks upon the above specimens, presented by Mr. 

 Coleman (of Augusta, Ga.), he was highly complimented for his 

 work. 



BY WM. B. CANFIELD, M. D. 



8. Transverse section of an embryo pig (stained with eosin 

 and hsematoxylin). 



9. Drinking-water (Baltimore, May 14th, 15th and 16th, 1887.) 

 The water contained a large number of diatoms, rotatoria and 



members of the cyclops family, beside a large amount of vegetable 

 life in a state of decomposition. The City Water-Board say the 

 reservoirs contain too many fish, thereby making the water bad to 

 taste and smell. 



10. Human skin (injected). 



This specimen was obtained from an arm recently amputated. 

 The injection was made with carmine gelatine, through the brachial 

 artery, the skin then stripped from the arm and preserved as a 

 whole. Pieces from this were imbedded and cut, so that the locality 

 from which the specimen was taken was known. 



BY G. L. SMITH. 



11. Spirogyra in conjugation (mounted in glycerine jelly, 

 showing it in all stages). 



12. Aspergillus Glaucus — from plum jelly (mounted in glycer- 

 ine jelly). 



F. w. m'allister 

 Showed Holmans' " Life Slide " and " Current Slide," and also 

 freezing gasoline microtome. He gave an interesting demonstration 

 of them with remarks. 



BY J. C. CULBKETH, A. M., M. D., PH. D. 



13. Zygosporefe. 



Dr. Culbreth gave at length a review of thallophytes, but con- 

 fined himself mostly to zygosporese, in which, for some time past, 

 he had been specially interested. The characteristic differences 

 between the myxomycetes and zygomycetes were illustrated by slides 

 and by the fresh growing specimens. The former was shown to 

 conjugate with motile cells, appears on stumps of trees, also on tan- 

 heaps, is of a yellow color, and has the nomen, " Flowers of Tan," 

 {(Ethalium septicum.) In the latter, conjugation takes place be- 



