122 THE AMERICAN MOKTIILY [June, 



Tlic Annuiil Soiree of the Wasliington Microscopical Society. 



By ROBERT W. SMILEY, 



WASHINGTON, D. C. 



The sixth annual soiree of the Washington Microscopical Society 

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

 April 33. The success of the event was very gratifying to the officers 

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

 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 : CEsophagus and 

 stomach of rabbit. 



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

 (injected), 



]3y Dr. I. W. Blackburn, with Zentmayer : Carcinoma (cancer) of 

 the heart. 



By Mr. E. S. Burgess, with B. & L. : Leaf structure, show^ing cells, 

 stomata, and chlorophyl granules; and fresh-water algre (water- 

 mosses) . 



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

 quito, eggs, and eggs of bot-fly (^Gaste7'ophilus cqui) attached to horse 

 hair. 



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

 Illinois. 



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 amygdalin (polariscope) and insect eggs. 



By Mr. Walter C. Duft^, wnth 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 Qiieen : 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. Radclifie, with Beck : Injected lung, showing capillary 

 distribution. 



By Dr. Robert Reyburn, with Beck and Acme No. 5 : Eggs of 

 water-snail {Lytnnoea strognalis) and green hydra {Ilydra 7' /rid is). 



By Dr. H. A. Robbins, with Reichert : Trtc/iina spiralis. 



