SCIENCE 



[N. S. Vol. XXXIV. No. 876 



has been transferred from the department of 

 anatomy to that of zoology. New assistants 

 appointed in zoology are H. V. Lacy, Edward 

 H. Jones, Elizabeth A. Smith and Nathan 

 Easter. 



Dr. Egbert Eetzer, of the University of 

 Minnesota, has been appointed assistant pro- 

 fessor of anatomy in the University of Chicago. 



A. B. Dunning, S.B. (Harvard, W), has 

 been appointed assistant professor of mathe- 

 matics at Boston University. 



At Northwestern University Leon Irwin 

 Shaw, Ph.D. (Wisconsin), has been appointed 

 instructor in chemistry; George Vest Mc- 

 Cauley, Ph.D. ("Wisconsin), instructor in 

 physics, and Chester Henry Teaton, A.M. 

 (Harvard), instructor in mathematics. Robert 

 Harvey Gault, Ph.D., has been advanced from 

 an instructorship to an assistant professorship 

 in psychology and has been appointed editor 

 of the American Journal of Criminology. 



DISCUSSION AND COBBESPONDENCE 



THE COTTON VfORM IN MASSACHUSETTS 



During the last week in September of the 

 present year, a number of moths of the cotton 

 worm, Alabama argillacea Hiibn., were cap- 

 tured at Amherst, Mass., some of them being 

 taken at night, while others were found at rest 

 during the daytime. Although this insect has 

 been taken at Amherst before, there are no 

 records of it in any such abundance, and it 

 would seem that there must have been quite a 

 pronounced northern migration of this species 

 this season. The moths were very fresh and 

 perfect. 



There have been occasional captures of this 

 moth in the New England states, and in the 

 collection of Mrs. C. H. Fernald is a fresh 

 pair taken in September (probably 1881) at 

 Orono, Maine. 



It may be well to call attention here to a 

 discussion on the habits of this insect at a 

 meeting of the entomological members of the 

 American Association held in 1882, and re- 

 ported in The Canadian Entomologist, Vol. 

 XrV., p. 151, where some evidence is given, 



supporting the view that the appearance of 

 this species in the north is not, at least in all 

 cases, due to migration. 



H. T. Eernald 



VECTORIAL TREATMENT OF SECONDARY MAXIMA 

 IN GRATING SPECTRA 



To THE Editor of Science : A friend has 

 been good enough to direct attention to a 

 regrettable error in my review of Wood's 

 " Physical Optics," which appeared in Science, 

 September 29, 1911. 



Instead of alluding to " the author's clever 

 vectorial treatment of secondary maxima in 

 grating spectra," I should have called atten- 

 tion to the fact that the essential features of 

 this beautiful geometrical and graphical 

 method were invented by Professor Arthur L. 

 Kimball. The omission of this fact from 

 Professor Wood's text is doubtless owing to 

 want of space. 



I still remember the delight with which I 

 read Professor Kimball's paper when it ap- 

 peared in the Philosophical Magazine, July, 

 1903, and can explain my forgetfulness and 

 inadvertency only as a consequence of the very 

 considerable amount of sand which has run 

 through my hour glass. 



Henry Crew 



QUOTATIONS 



the university president and his PROFESSORS 



A SUCCESSFUL college or university president 

 can not afford, for the sake of his own suc- 

 cess, to make his administration in any sense 

 a personal one. It is his business to see to it 

 that the students who commit their training 

 to the institution he serves, are provided with 

 the very best teachers and lecturers the funds 

 at his command will allow him, with the con- 

 sent of his board of trustees, to give to these 

 young people. If there are instructors whose 

 worth has been demonstrated by years of serv- 

 ice, he will put forth every possible effort 



' Extracts from an address to the senate of the 

 University of Vermont and State Agricultural 

 College by Guy Potter Benton, installed as presi- 

 dent on October 6, 1911. 



