BULLETIN 



THE PHILOSOPHICAL SOCIETY OF 

 WASHINGTON. 



73d Meeting. October 10, 1874.. 



Vice-President W. B. Taylor iu the Chair. 

 Mr. Theodore Gill read a paper 



ON the prodromus methodi mammalium of storr. 



{Published in full in Appendix V. of this Bulletin.) 



Mr. E. B. Elliott made a communication 



on the use of metric weights and balances for postal 

 purposes in the united states : 



calling attention to the fact that fifteen grammes, a weight but 

 slightly greater than one-half ounce avoirdupois, had been made 

 by statute law its equivalent for postal purposes. 



Dr. B. A. Gould, Director of the Argentine National Ob- 

 servatory at Cordoba, was then introduced, and, in answer to 

 several questions, gave an account of the general condition of 

 scientific culture in the Argentine Republic. 



74th Meeting. October 24, 1874.- 



The President, Mr. Joseph Henry, in the Chair. 



Rev. Dr. C. W. Shields, of the College of New Jersey^ 

 Princeton, read a paper 



12. 



