Miscellaneous Intelligence. 397 



Ira. Remsen aDd W. A. Jones: The question of the existence of active oxygen 



Ira Remsen and J. W. Lawson: On the product formed by the action of ben- 

 zenesulphonchloride on urea. 



Ira Remsen : On double halides containing organic bases. 



W. K. Brooks: McCrady's Gymnopthalmata of Charleston harbor. 



Carl Barus: Ballistic galvanometry with a countertwisted torsion system. 

 A curious inversion in the wave mechanism of the electromagnetic theory of 

 light. 



Charles S. Hastings: A consideration of the conditions governing apparatus 

 for astronomical photography. 



T. C. Mendenhall : The use of graphic methods in questions of disputed 

 authorship, with an application to the Shakespeare-Bacon controversy. 



A. W. Wright: A method for obtaining a photographic record of absorption 

 spectra. 



H. Y. Benedict: Theories of latitude variation. 



E. W. Brown : Progress in the new theory of the moon's motion. 



Charles L. Doolittle : On the variation of latitude and the aberration- 

 constant. 



The next meeting of the Academy will be held at New Haven, 

 Conn., on November 15th. 



3. American Association for the Advancement of Science. — 

 The fiftieth anniversary of the Association will be celebrated at 

 the coming meeting in Boston, August 22 to 27. A preliminary 

 circular has been recently distributed giving the names of the 

 officers of the meeting, of the local committee and also the plans 

 so far as matured for giving this meeting the importance which 

 the occasion demands. The sessions are to be held in the halls 

 and rooms of the Massachusetts Institute of Technology and of 

 the Boston Society of Natural History ; accommodations will be 

 thus furnished for all the Sections and for the General Sessions in 

 three closely adjoining buildings. It is also stated that the Cor- 

 poration of Harvard University has invited the Association to be 

 its guest for a day in Cambridge : and that the Essex Institute 

 has arranged for a day in Salem. There will also be an excursion 

 in the harbor, and after the meeting, trips to the White Moun- 

 tains and to Cape Cod. Many foreign scientists will be invited 

 to take part, and many foreign educational and scientific institu- 

 tions are expected to send delegates, thus giving to the meeting 

 an international character. During the Association week and the 

 days immediately preceding, a number of affiliated societies will 

 meet in Boston including the American Geological Society, the 

 American Chemical Society, the Society of Economic Entomolo- 

 gists, and others. 



The President of the meeting is Prof. F. W. Patnam, who for 

 twenty-five years has performed the laborious duties of Permanent 

 Secretary. In retiring from this position he makes an earnest 

 appeal to all interested in science to take hold and make this anni- 

 versary meeting thoroughly successful. This call will doubtless 

 meet with a generous response. All correspondence should, be 

 addressed to the Local Secretary, Prof. H. W. Tyler, Massachu- 

 setts Institute of Technology, 491 Boylston st., Boston. 



