122 THE AMERICAN MONTHLY . [June, 



The Aiimial Soiree of the VVasliiiigtoii Microscopical Society. 



By ROBERT W. SMILEY, 



WASHINGTON, 13. C. 



The sixth nninial soiree of the Washington Microscopical Society 

 was lield in the halls of the High School building on the evening of 

 April 22. The success of the event was very gratifying to the officers 

 of the Society. A large audience of nearly 500, after listening with 

 pleasure to the address of the president, dispersed through the corridors 

 to view the interesting objects displayed, many of which called forth 

 exclamations of delight and wonder. The following exhibits were 

 made : 



By Dr. G. N. Acker, with Zeiss and Hartnack : (Esophagus and 

 stomach of rabbit. 



By Dr. E. A. Balloch, with Zentmayer (binocular) : Skin of frog 

 (injected). 



By Dr. I. W. Blackburn, with Zentmayer: Carcinoma (cancer) of 

 the heart. 



By Mr. E. S. Burgess, with B. &; L. : Leaf structure, showing cells, 

 stomata, and chlorophyl granules; and fresh-water alga^ (water- 

 mosses) . 



By Dr. C. T. Caldwell, with B. & L.'s Universal and Harvard : Mos- 

 quito eggs, and eggs of bot-fly ( Gastcrophiliis cqui) attached to horse 

 hair. 



By Mr. F. T. Chapman, with B. & L. : Electric spark through metal 

 filings. 



By Dr. A. B. Coolidge, with B. & L. : Shells of embryo oyster. 



By Dr. H. A. Dobson, with B. & L. : Polycistina from Barbadoes. 



By Mr. H. H. Doubleday, with Crouch (binocular) and Zentmayer: 

 Crystals of amygdaliu (polariscope) and insect eggs. 



By Mr. Walter C. Duti', with B. & L. : Various parts of the honey- 

 bee. 



By Dr. J. M. Flint: Foraminifera. 



By Mr. Richard Foster, with Crouch : Aphides. 



By Dr. E. A. Gibbs, with Beck and B. & L. : Circulation of blood 

 in frog, arsenious oxide. 



By Prof R. Hitchcock, with Bulloch and .Schrauer : Cyclosis (cir- 

 culation of sap in plants) and scales on back of beetle. 



By Dr. D. S. Lamb, with Beck and B. & L. : Transverse section of 

 bone, and diatoms (80 arranged), with names photographed beneath. 



By Dr. J. M. Lamb, with B. & L. and C^ueen : Blood corpuscles- 

 human, guinea-pig, amphiuma, and frog. 



By Dr. Collins Marshall, with Acme No. 3 : Foraminifera. 



By Mr. Lewis Mooers, with Seibert : Salicin and saccharin (polari- 

 scope) . 



By Dr. V. A. Moore, with Zeiss No. i : .Section of tubercle from 

 pleura, showing tubercle bacilli. 



By Dr. S. J. Radclifle, with Beck : Injected lung, showing capillary 

 distribution. 



V>\ Dr. Robert Reyburn, with Beck and Acme No. 5 : Eggs of 

 water-snail {Lynnuva strog}ialis^ and green hydra (^Ilvdra virid/s) . 



By Dr. H. A. Robbins, with Rcichert : Trichina spiralis. 



