Januaey 17, 1908] 



SCIENCE 



113 



tutions would probably be classified as stu- 

 dents in liberal arts with tbeir major subjects 

 in political science or architecture. On the 

 other hand, Stanford, which was given fourth 

 place in the number of academic students, 

 makes no distinction in its returns between 

 academic students and students in applied sci- 

 ence. The men in the undergraduate schools 

 of this institution are very largely registered 

 for major work in the departments of applied 

 science, just as they are at the Univereity of 

 California and at other western institutions. 



In the case of Indiana University, the 

 figures for 1902-03 as reported by the regis- 

 trar's ofiice include all students enrolled in 

 the university from November to November, 

 thus including in each case two freshmen 

 classes. For the years following 1903 the 

 figures include the enrollment from the be- 

 ginning of the summer term in June to No- 

 vember of the same year, and do not include 

 the new enrollment between November and the 

 following June. Accordingly, the totals for 

 1902-03 are much too large and the totals 

 for the following years are too small. The 

 actual total enrollments for the university are 

 as follows : 



1901-1902 1,285 



1902-1903 1,469 



1903-1904 1,418 



1904-1905 1,538 



1905-1906 1,684 



1906-1907 1,821 



EUDOLF TOMBO, Jr., 



Registrar 

 Columbia Univeesity 



another flea remedy 

 To THE Editor of Science: Anent the com- 

 munication from Dr. L. O. Howard in your 

 issue of November 29, the following pre- 

 ventive, which insures a comfortable night's 

 rest in spite of the proximity of fleas, may be 

 of interest. In sleeping in farmhouses and 

 country hotels in western Oregon, where there 

 was not only a reason to suspect the presence 

 of fleas, but where their presence had been 

 demonstrated beyond question, I secured im- 

 munity by pouring a little camphor in solution 

 in the palm of my hand, and rubbing limbs 



and body with the same. This method is, I 

 believe, in quite general use in infested re- 

 gions by travelers who have not reached the 

 climax of indifference enjoyed by the natives. 



F. L. Washburn 

 Minnesota Experiment Station, 

 December 5, 1907 



SPECIAL ARTICLES 



the fossil SAWPLY PERGA C0L0RADENSI3 



In Science of October 4, p. 446, I recorded 

 a large fossil sawfly from Florissant, appar- 

 ently referable to the Australian genus Perga. 

 In the course of unpacking the Florissant 

 materials, the reverse impression, which I had 

 not seen before, has come to light. It shows 

 certain parts of the wing not clearly visible 

 in the original, and enables me to see that 

 there is a lanceolate cell, traversed by a cross- 

 nervure, after the manner of Oinnbex. As the 

 marginal cell has no trace of a cross-nervure, 

 wherein it agrees with Perga, and not with 

 Cirnhex, the insect finds no place among mod- 

 ern sawfly genera, and may be placed in a 

 new genus Phenacoperga. 



Phenacoperga coloradensis differs from 

 Cimbex not only in the character just men- 

 tioned, but in the position of the cross-nervure 

 of the lanceolate cell, which has retreated far 

 toward the base of the wing, so that it is more 

 than twice as distant from the apex of the 

 lanceolate cell as from the base of the wing. 

 This may probably be regarded as a step 

 toward the condition in Perga, where the 

 cross-nervure may be considered to have re- 

 treated to the very base, and the lower side 

 of the cell then to have failed. 



The new genus appears to confirm Konow's 

 classification, wherein Cirnbex and Perga are 

 associated in the same subfamily. According 

 to his system, it would form a new tribe be- 

 tween the Syzygoniides and Cimbicides. 



I will take this occasion to refer to Atocus 

 defessus Scudder, another extinct genus of 

 sawflies from Florissant. According to Scud- 

 der's figure, the insect appears to be anomalous 

 from the total absence of any subcostal nerv- 

 ure. I recently examined the type at Cam- 

 bridge, and can affirm that the subcostal is 



