OP ARTS AND SCIENCES. 511 



1. That, in the opinion of the American Academy of Arts and 

 Sciences, the establishment of a catalogue of scientific literature to 

 be maintained through international co-operation is both desirable and 

 practicable. 



2. That a copy of this report be transmitted to the Royal Society, 

 as a suggestion of the way in which this plan may be best carried 

 out. 



3. That in case such a card catalogue as that recommended in this 

 report be established, it is desirable that the American Academy co- 

 operate with the central bureau by forwarding titles and summaries 

 of the articles published in its Proceedings and Memoirs. 



(Signed,)^ 



C. L. Jackson, 

 h. p. bowditch, 

 Denman W. Ross, 



Committee. 



The Corresponding Secretary read an abstract of C. F. 

 Mabery's paper, " On the Composition of the Ohio and 

 Canadian Petroleums." 



The following papers were read by title : — 



On the Electric Resistance of certain Poor Conductors. 

 By B. 0. Peirce. 



On the Variability in the Spores of the Uredo Polypodii. 

 By B. M. Duggar. 



Note on the Effect of Temperature on Hysteresis. By 

 Frank A. Laws and Henry E, Warren, 



The Recording Secretary presented a copy of the Proceed- 

 ings of the International Congress on Water Transportation, 

 held at Chicago in 1893, and remarked that it contained a 

 memoir on Electric Haulage which anticipated two papers 

 presented this year at the International Inland Navigation 

 Congress at the Hague, at which he was present. 



