ABSTRACT OF PROCEEDINGS. 



January 17, 1900. Annual meeting. Election of officers. 



February 21, 1900. Reception to the American Institute of Mining 

 Engineers in the Corcoran Gallery of Art. 



May 29, 1900. Business meeting. Amendment to by-laws pre- 

 scribing that the annual meeting shall be held on the third Thursday 

 in January in each year. 



November 9, 1900. Business meeting. Admission of additional 

 members. Purchase of a lot for a building site. 



The following addresses have been delivered under the auspices of 

 the Academy : 



February 13, 1900. Annual address of the President of the An- 

 thropological Society, Mr. W J McGee, on ' The Cardinal Principles 

 of Science.' 



December 8, 1900. Annual address of the President of the Philo- 

 sophical Society, General George AI. Sternberg, M.D., on ' Malaria.' 



Also the following series of addresses for the exposition of Pho- 

 tography as an Aid to Research : 



February (5, igoo. 

 The History and Chemistry of Photography, Lyman J. Briggs. 

 Photomicrography, Gen. Geo. M. Sternberg. 

 Photography in Vegetable Physiology and Pathology, Jvl, B. Waite. 



February 75, igoo. 



Photography as an Aid in the Study of Plants, F. V. Covii,i-e. 

 Photography in Animal Physiology and Pathology, Dr. D. S. Lamb. 

 Photography as an Aid in Medicine and Surgery, Dr. W. C. Borden. 



Marc/i (5, igoo. 

 Photography as an Aid in Zoologv, Dr. C. Hart Merriam. 

 Outfits and Methods of the Bird Photographer, Frank M. Chapman. 

 Photograpiiy as an Aid in Entomology, Dr. L. O. Howard. 



March 20, igoo. 

 Photography as an Aid in Surveying, D. B. Waiwvright. 

 Pliotograi)hic Surveying with the Ordinarv CamcMa, Prof. H. F. 

 Knii.. 



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