1888.] MICEOSCOPICAL JOURNAL. 191 



The paper of J. M. Steadman of Cornell University on the ' Development 

 and Reproduction of the Sun Animalcule,' was read by C. C. Mellor of 

 Pittsburg. Dr. A. M. Bleile read a paper on ' The Bacillus of Leprosy,' by 

 Chevalier Q. Jackson, M. D., of Pittsburg, Pa. The latter paper was ac- 

 companied by photographs of drawings, and recited several experiments 

 made on rabbits. 



The morning session closed with a paper by Dr. G. E. Fell of Buffalo, N. 

 Y., entitled, ' Examination of Legal Documents with the Microscope," dis- 

 coursing on the detection of fraud in legal documents by means of the micro- 

 scope. 



WEDNESDAY AFTERNOON. 



In the afternoon the society took cars at the Park hotel for the State Uni- 

 versity, where they were entertained by Professors Detmers, Thomas, Weber 

 and others in the physical laboratory. 



The following papers were presented : — 



' Photomicrography with High Powers and Lamp-light, with Exhibits of 

 Photo-Lantern Slides with Electric Light,' by Dr. H. J. Detmers, of Colum- 

 bus, Ohio. 



' Projection of Colored Photographs of Crystals of Butter and other An- 

 imal Fats,' by Dr. Thomas Taylor, Washington, D. C. 



The lantern slides of the crystals of butter, and the fats used in its sophis- 

 tication, adulteration and counterfeiting from the photomicrographs by Dr. 

 Taylor, were colored, in the most exquisite manner, to represent the appear- 

 ance of the crystals under polarized light. Each slide was so faithful to na- 

 ture that it was very difficult to make those who had not had the pleasure of 

 examining the slides believe that the projections were not polariscopic. It 

 has been but a few years since the idea of using the microscopic and polar- 

 iscopic appearances of the crystals of the different fats as tests of their purity 

 were first presented by Dr. Taylor at the Cleveland meeting of the society. 

 He fairly startled a large portion of the scientific men of the country, and 

 they hesitated to endorse the method. To-day some of the very men are using 

 his methods without saying much about the inventor. 



The members of the American Society visited the University buildings, 

 the library, the chemical and physiological laboratories and other points of 

 interest, and expressed themselves as well pleased with the University and 

 its equipments. 



One of the noticeable events of the afternoon was the collation tendered 

 the members of the American Microscopical Association, by the lady rela- 

 tives of the members of the State Microscopical Society of Ohio. 



In the evening there was a meeting of the American and State Microsco- 

 pists and ladies at the parlors of the Park hotel. Several of the gentlemen 

 displayed their skill in the use of the microscope, the instruments being fur- 

 nished by the local opticians. 



THURSDAY MORNING. 



A business session opened with the election by ballot of a committee to 

 nominate officers for 1889, as follows: — Professor H. J. Detmers of Colum- 

 bus, Ohio ; Professor W. J. Lewis of Hartford, Conn. ; Professor F. O. 

 Jacobs of Newai-k, O. ; Professor W. H. Seaman of Washington, D. C. ; 

 Doctor Thomas Taylor, Washington, D. C. ; Professor S. M. Mosgrove, 

 Urbana, O. ; and Henry Bausch, Rochester, N. Y. Professor Detmers hav- 

 ing received the largest number of votes was aimounced as Chairman of the 

 Committee. Nominations will be reported for the offices of President, two 

 Vice-Presidents, and three members of the Executive Committee ; the Secre- 

 tary and Treasurer having been elected for three years and holding over. 



