254 rochester academy of science. [oct. i3, 



October 13, 1897. 



The meeting was held at the Reynolds Library. President 

 Fairchild in the chair. Seventy-five persons present. 



Dr. Erwix F. Smith, Assistant Pathologist, Division of \'ege- 

 table Pathology and Physiology, Department of Agriculture, Wash- 

 ington, D. C, gave an informal account of the investigation of plant 

 diseases by the Department of Agriculture, with special description of 

 the "stem-rot" of cabbage, "brown-rot" of potatoes, "water-spot" 

 of beans, and other bacterial diseases of plants. The paper was illus- 

 trated by lantern views and specimens of infected plants. 



The paper was discussed by several members. In answer to a 

 question. Dr. Smith stated that no one variety of cabbage was more 

 susceptible to " stem-rot " than others. 



A formal vote of thanks was tendered Dr. Smith for his interest- 

 ing lecture. 



November 9, 1897, 



The meeting was held at the Reynolds Library. President 

 Fairchild in the chair. Seventy persons present. 



Mr. and Mrs. A. J. Perkins, Mr. T. J. Nichols, Commander 

 Franklin Hanford, U. S. N.', and Mr. M. S. Baxter were 

 elected to active membership. 



Mr. H. L. Preston read a paper upon : 



IRON METEORITES AS NODULAR STRUCTURES IN 



STONY METEORITES.* 



The paper was discussed by Mr. John M. Davison, who men- 

 tioned the case of an iron meteorite containing hydrogen, which was 

 probably introduced when cooling under a pressure of about five 

 atmospheres. 



Commander Franklin Hanford, of the U. S. Steamer Alert, 

 gave a lecture entitled : 



NAVAL EXPERIENCES IN THE PACIFIC. 

 The lecturer described the xessel, of which he was in command 



*The paper was published in Aiiiprican Journal of Science, Vol. 5, 1898, pp. 62-64. 



