124 REPORT OF ASSISTANT DIRECTOR OF NATIONAL MUSEUM. 



EiLEY Charles V. — Another herbivorous Ground-beetle. 



(Amer. Naturalist, Dec, 1881, xv,p. 1011.) 



Anisodactylus cortfusus injuring strawberry plants in California. 



A disastrous sheep parasite. 



(Amer. Naturalist, Dec, 1881, xv, p. 1011.) 



Trichodecteis ovis doing great injury to flocks of sheep in Illinoia. 



Eesistauce of grape-^ines to Phylloxera in sandy soil. 



(Amer. Naturalist, Dec, 1881, xv, pp. 1012-1013.) 



Locusts in the West in 1881. 



(Amer. Naturalist, Dec, 1881, xv, p. 1013.) 



The Chinch Bug. 



(Amer. Agriculturist, November, 1881, vol. xl, p. 476, fig. 1-3; ibid., Decem- 

 ber, 1881, vol. xl, p. 515, fig. 1-4.) 



Destructive powers, food-plants, characters, habits, natural history, meteor- 

 ological conditions affecting, natural enemies of, and means of coping with 

 Blissus leucopierus, Say. Describes as enemies Anthocoris insidiosus, Harpactor 

 cinctiis, and Nysius destructor; also some false or bogus chinch bugs. Lays 

 stress on value of irrigation. 



Peach Tree Bark-borer. Important note from Professor C. V. 



Riley. 



(Rural New Yorker, Dec. 24, 1881.) 



Account of injuries to peach trees of a beetle, Phloiotribus Hminaris, Harr. 



Shufeldt, R. W., M. D. — The Claw on the Index Finger of the Ca- 

 thartidae. 



(Amer. Naturalist, November, 1881, xv.pp. 906-908.) 



An important osteological paper based upon material in the collection of 

 the National Museum. 



On the Ossicle of the Antibranchium as found in some of the 



North American Falconidae. 



(Bull. Nutt. Orn. Club., Oct., 1881, vol. vi, pp. 197-203.) 

 An important osteological paper based chiefly on material coatained in 

 the Rational Museum collection. 



Ward, Lester F. — Evolution of the Chemical Elements. 



(Popular Science Monthly, February, 1880, pp. 526-539.) 



A discussion of the theory of defveloj)ment as applied to the elements and 



consideration of the facts recently revealed by spectrum analysis seeming to 



favor the theory. 

 Previously read before the Philosophical Society of Washingten. 



Incomplete Adaptation as illustrated by the History of Sex in 



Plants. 



(Amer. Naturalist, February, 1881, pp. 89-95.) 



Read before the Biological Section of the American Association for the Ad- 

 vancement of Science at Boston August 27, 1880. 



The paper shows that there exist, in nearly all departments of the vege- 

 table kingdom, successive degrees to which the i^rocess of sexual diliereutia- 

 tion has attained, and that in many cases there are obvious indications that 

 this process is still going on. 



