166 THE AMERICAN MONTHLY. [July, 



By Dr. H. A. Dobson, with B. & L.'s Student ; honey bee (the 

 various parts). 



By Mr. H. H. Doubleday, with Crouch Binocular, and Zentmaver ; 

 So diatoms arranged. Salicine (pohirized light). 



By Prof. R. Foster, with Crouch Binocular ; circulation of blood in 

 external gills of tadpole. 



By Dr. R. A. Foster; section of human brain. 



By Dr. E. A. Gibbs, with Beck's Ideal and Acme No. 3 ; action 

 of the heart in an embryo snake, transverse section of intestine (showing 

 villi). 



By Prof. R. Hitchcock, with Schrauer and Bidloch's Binocular ; 

 microscopic pond life, circulation of blood in young fish. 



By Dr. D. S. Lamb, with B. & L.'s LLirvard and Beck's Economic ; 

 embryo hand showing serial sections (one two-thousandth inch thick), 

 the Lord's Prayer, written by Mr. M'^ebb. 



By Dr. J. M. Lamb, with B. & L.'s Universal ; transverse section 

 of spinal cord. Dr. Lamb also illustrated the method of cutting serial 

 sections embedded in parafhn. 



By Mr. V. A. Moore, with Zentmayer's J3inocular ; cultures of 

 micro-organisms, colony of bacilli. 



By Dr. Collins Marshall, with Acme No. 3 ; type-plate of diatoms, 

 being the siliceous coating of aquatic plants. 



By Dr. S.J. Radclifte, with Beck's Popular Binocular ; voluntary 

 muscle (injected, showing the striae and distribution of the capillary 

 system), stomach of frog (injected, showing the villi and glandular ap- 

 paratus) . 



By Dr. Robert Revburn, with Qiieen's Household and Beck's Popu- 

 lar ; iodo-sulphate of quinine by polarized light, ova of Lymnoea Strog- 

 nalis, eggs of water snail (showing internal organs and circulation of 

 blood). 



By Dr. H. A. Robbins, with Reichert ; Arytenoid cartilage, photo- 

 micrograph (Uncle Tom and little Eva). 



By Dr. W. H. Seaman, with Zentmayer's Large and Beck's Large 

 (best) ; Bryozoa (the calcareous shells of small marine animals) , *• Roll- 

 ing Stones" (quartz sand), with polariscope. 



B}' Mr. A. N. Skinner, with Zentmayer's Histological : circulation 

 of blood in the web of frog's foot. 



By Mr. C. W. Smiley, with Crouch's Histological ; Hydrozoa. 



By Dr. Thomas Taylor, with Acme, Zeiss, and Gundlach ; stomata 

 of tea leaf, crystals of human fat by polarized light, transverse section 

 of leg of mouse. Dr. Taylor exhibited also his new freezing micro- 

 tome, and demonstrated both section-cutting and photo-micrographv. 



By Mr. Clinton Townsend, with B. and L.'s Phvsician ; Vorticella' or 

 bell animalcules (a curious infusoria, which obtains its i'ood by making 

 whirlpool-like currents by means of vibrating ciliie). 



By Dr. L. D. Wilson, with B. and L.'s Physician ; section of kitlney 

 from cat. 



By Mr. F. B. Wright, marine algai (in fruit). 



By Dr. G. B. Young, with B. and L.'s Universal ; Foraminifcra (ar- 

 ranged). 



The yearly soirees which many microscopical societies are in the 

 habit of giving for the benefit of the public cannot be too highly com- 



