UNITED STATES 279 



Contents: no. i. Electrical progress of the year 1887. By J. Wetzler. Dec. 

 28, 1887. 12. no. 2. A practical method of calculating and designing 

 dynamos and motors. By F. B. Crocker. Mar. 28, 1888. 12. no. 3. The 

 social side of the electric railway. By T. C. Martin. Mar. 12, 1888. 8. 

 no. 4. Electricity at high pressure. By Elihu Thomson. Mar. 29, 1899. 8. 

 no. 5. Systems of electric transmission and distribution. By C. P. Stein- 

 metz. Nov. 16, 1900. 8. no. 6. Modern telephone engineering. By K. B. 

 Miller. Feb. 14, 1901. fol. no. 7. Power plants of the Pacific coast. By 

 F. A. C. Perrine. Jan. 15, 1902 4. no. 8. The requirements of machine 

 tool operation with special reference to the motor drive. By C. Day. Dec. 

 17, 1902. 8. no. 9. Electric railway operation in a great city. By H. H. 

 Vreeland. Feb. 15, 1905. 8. 



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New York Entomological Society. 



Address. Secretary: H. G. Barber, 231 West I35th Street, New York 



City, N. Y. 



History. Organized June 29, 1892; incorporated June 7, 1893. 

 Object. Advancement and cultivation of entomological science in all its branches. 

 Meetings. 1st and 3d Tuesdays of each month, Oct. to May, in the American 



Museum of Natural History. 

 Membership. 60 active (annual dues, $3) ; 75 corresponding. 



Publications. 



JOURNAL . . . v. I-XIV, Mar. i893-Dec. 1906. New York, 1893-1906. 



8. q. 



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New York Microscopical Society. 



Address. American Museum of Natural History, New York City, N. Y. 

 Secretary: James H. Stebbins, Jr., 3 W. 29th Street. 



History. Founded in 1877. 



Object. Advancement and encouragement of interest in microscopy. 

 Meetings. 1st and 3d Fridays of each month. 



Membership. 55 (annual dues, $5). 



Publications. 



TRANSACTIONS . . . v. i, Oct. i878-July 1879. 



Issued in 4 numbers with the American quarterly microscopical journal, 

 v. I. New York, [1878-79]. 8. 



JOURNAL . . . v. I-XVII. New York, [1885-1903]. 8. 



v. 1-2, 9 nos. annually; v. 3-16, quarterly nos. ; [v. 17], annual of 1902. 

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