772 PROCEEDINGS OF THE ACADEMY OF [Dec. 



December 6. 

 Mr. Arthur Erwix Brown, Vice-President, in the Chair. 

 Twenty persons present. 



The death of T. M. Drown, a member, November 16, was announced. 

 Papers under the following titles were presented for publication: 



"New, Rare and Little-known Scombroids, No. 1." by Henry W. 

 Fowler (October 31). 



"New ClausiUidae of the Japanese Empire," by Henry A. Pilsbry 

 (November 22). 



"Description of a New Species of Earthworm {Diplocardia longa) 

 from Georgia," by J. Percy Moore (November 30). 



"A Catalogue of the Erigonese of North America," by Cyrus W. 

 Crosby (December 5). 



"A Contribution to the Knowledge of the Orthoptera of South and 

 Central Florida," by James A, G. Rehn and Morgan Hebard (Decem- 

 ber 12). 



"New, Rare and Little-known Scombroids, No. 2," by Henry W. 

 Fowler (December 13). 



Some Practical Color Tests. — Dr. Henry Emerson Wetherill 

 explained a series of charts illustrating practical color tests as applicable 

 primarily to man, although the charts can be used for work in other 

 fields. 



An ante-mortem blood-color scale represents the amount of Oxy- 

 hsemoglobin with 100 per cent, as normal. It is made circular to facili- 

 tate its use. There are perforations between the adjacent colors so 

 that they may be the better matched. A similar series of colors repre- 

 sents the blood twenty-four hours after death. 



The relative humidity of the air is illustrated by a moistiu-e scale, 

 which can also be used to measure the amount of cutaneous excretion. 



The colors of the urine are represented by two charts, and a scale for 

 the colors of the feces enables one to report nimierically the conditions 

 as found. 



An improvement of the Dimethylamidoazobenzol test for HCL 

 was shown, and remarks made on its application. 



These scales serve as standards of comparison. A classification was 

 contained in the book given to the Academy. 



