1894.] MICROSCOPICAL JOURNAL. 96 



ters of the Greek alphabet. The employment of Ehrlich's 

 stains for clinical purposes is at present mostly confined to the 

 differentation of the pathological conditions known as leucocy- 

 tosis, leukaemia and anaemia. After discussing the nature of 

 these pathological conditions Mr. Freund gave a practical dem- 

 onstration of the employment of the stains, carefully detailing 

 each step from the extraction of the drop of blood to the 

 finished and mounted preparation. He spoke with enthusiasm 

 of gum thus, the new mounting medium which Dr. Eisen pre- 

 sented to the notice of the society at the last meeting. 



After the demonstration, under a dozen microscopes were 

 displayed preparations rendering evident the nice differential 

 stainings, for which Mr. Freund is so well known. 



W^ashington, D. C, L,. M. Mooers, Sec'y. 



February 14, 1894. — The society at this meeting held the third 

 of a series of working sessions, at which Dr. Richard Foster, of 

 Howard University, exhibited a method of demonstrating veg- 

 etable histology. Especially in class work the detail of prepar- 

 ing should be easy and ready. The doctor showed how the 

 various parts of the plant may be sectioned, stained and 

 mounted ready for examination in but a few minutes. Instead 

 of glass, slips of cardboard were used with a circular opening 

 punched in the center. The section, after being stained in an 

 alcoholic solution and pressed with blotting paper, is placed be- 

 tween two films of mica, put upon the slip and covered with 

 gummed paper also punched to correspond witn its cardboard 

 slip. When finished the mount is similar to Walter White's 

 objects, and is not only neat but practically permanent. Mr. 

 C. W. Smiley presented samples of diatoraaceous earth from 

 New Britian, Conn., containing the form Stauroneis nuova bri- 

 tainica. He hoped that some one would give a working session 

 showing methods of cleaning these earths. Two applications for 

 membership were received. The Society decided to hold its 

 Annual Soiree in May. 



Lincoln Microscope Club.— Roscoe Pound, Sec'y. 



December 26, 1893. — No meeting was held on account of the 



meeting of the Nebraska Academy of Sciences at the same time. 



Jauuary 30, 1894. — No business meeting was held. The eve- 



