1890.] NEW YORK ACADEMY OF SCIEi^CES. 139 



April 14, 1890. 

 Stated Meeting. 

 The President, Dr. Newberry,, in the chair. 

 One hundred and fifty persons present. 

 President Newberry read by title the following paper: 



ox CERTAIN CRINOIDEA OF THE LOWER NIAGARA LIMESTONE 

 AT LOCKPORT, N. Y., WITH DESCRIPTIONS AND NEW SPECIES.' 



BY DR. E. N. S. RINGUEBERG. 



The eighth lecture of the Public Illustrated Course was de- 

 livered, entitled 



METHODS OF RESEARCH IN BACTERIOLOGY. 

 BY GEORGE M. STERNBERG, MAJOR AND SURGEON U. S. A. 



The lecturer began by giving a definition and a brief but in- 

 teresting history of his subject, naming the more common dis- 

 eases now known to be due to the growth and development of 

 certain species of bacteria. In the course of his remarks he 

 graphically explained how the bacteriologist proceeds in his dif- 

 ficult task of isolating and recognizing the various species, at 

 the same time exhibiting to his audience the simpler forms of 

 apparatus used in collecting and propagating these minute or- 

 ganisms. During the course of his remarks Dr. Sternberg- 

 paid eloquent tribute to the labors of Professors Koch and 

 Pasteur. Toward the close of his lecture he exhibited many 

 interesting lantern slides of pathogenic bacteria, many being 

 taken from cultures which he had prepared with great 

 care, and at the same time discussed the labors of other scien- 

 tists who have been working in the same field. The slides were 

 mainly from the bacillus of yellow fever; the lecturer was de- 

 cidedly of the opinion that none of those proposed was the true 

 source of this terrible disease. Dr. Sternberg is an eminent 

 authority on this subject, and has given this particular question 



'This paper will be published in the Annals of the New York 

 Academy of Scirnces, Vol. V., No. 7. 



