OF ARTS AND SCIENCES. 527 



These false spectra are especially dangerous in series sjjectra work, giv- 

 ing a somewhat systematic reproduction of strong lines and groups, which 

 in actual vibration frequencies do not exist. There is some evidence 

 that such errors have been committed in the past, and it was in the pres- 

 ence of such errors that the false spectra were here discovered." 



Report of the C. M. Warren Committee. 



In behalf of the C. M. "Warren Committee, I have to report that Pro- 

 fessor Mabery, to whom a grant of $500 was voted by the Academy at 

 the last Annual Meeting, has vigorously prosecuted his researches on the 

 Composition of Petroleums. During the year he has published also 

 several papers describing the results of his earlier researches which were 

 aided by previous grants from the Warren Fund. 



Professor H. O. Hofman, to whom grants, amounting in all to $230, 

 were made several years ago, has in this year published the results of 

 his work in a memoir entitled ''The Temperatures at which Certain 

 Ferrous aud Calcic Silicates are formed in Fusion, and the Effect upon 

 these Temperatures of the Presence of Certain Metallic Oxides." 



The C. M. Warren Committee recommends that the sum of six hundred 

 dollars ($600) from the income of the Cyrus M. Warren Fund be granted 

 to Professor Charles F. Mabery, of Cleveland, Ohio, for the continuation 

 of his j'esearches on the Chemistry of Petroleums. 



F. H. Storer, Chain/tan. 

 9 May, 1900. 



Report of the Committee of Publication. 



The Publishing Committee reports that during the past academic year 

 there have been issued three numbers of Vol. XXXI Y. and twenty-two 

 numbers of Vol. XXXV. of the Proceedings, aggregating 579 pages, with 

 no plates. One number only has been printed at the charge of the Rum- 

 ford Fund. The expenditure from the General Fund was $2, 01 2.93, 

 out of an available amount from appropriation and sales of $2,471.23, 

 leaving an unexpended balance of 0458.30. The Committee desires for 

 the coming year the same appropriation as for the last, viz., §2,400. 



For the Committee, 



Samuel II. Scuddeb, Chairman, 



