310 REPORT ON NATIONAL MUSEUM. 



Waloott, Charles Doolittle. — Injury sustained by the eye of a 

 Trilobite at the time of the moulting of the shell. 



(Amer. Jour. Sci., Oct., 1883, vol. xxvi, p. 302.) Description of the injury 

 received by the eye of Illcenus crassicauda during the life of the animal.) 



New species of fossils from the Trenton group of New York. 



(Pamphlet in advance of 35th Rept. N. Y. State Museum, Nat. Hist., issued 

 Oct. 15, 1883, 8 pp., 8 vo., 1 pi.) 



One new genus of crinoidea, Merocrinus, and the following species are de- 

 scribed: Mcrocrinus typus, Merocrinus corroborates, Glyptocrinus argutus, Glyp- 

 tocrinust subnodosus, Iocrinus Trentouensis, Dendrocrinua retractilis, Calceocrinus 

 Barrandii, Metoptoma Billingsi, Bcyrichia bella, Lcperditia (I) armata. 



Cambrian System in the United States and Canada (abstract). 



(Bulletin Philosophical Soc, Washington. Read Nov. 24, 1883. Vol. VI, 

 p. 97.) 



Defines the formations included within the Cambrian system on strati- 

 graphic evidence. 



Pre-Carboniferous strata in the Grand Canon of the Colorado, 



Arizona. 



(Amer. Jour. Sci., Dec, 1883, vol. xxvi, pp. 437-442 and p. 484.) 

 Describes the Potsdam and pre-Potsdam horizons of the Cambrian. 



Fresh-water shells from the Paleozoic rocks of Nevada. 



Notes and figures of. 



(Science, Dec. 21, 1883, vol. n, No. 46, p. 809.) 



One genus, Zaptychius, and the following species are mentioned and illus- 

 trated by outline figures: Zaptychius Carbonaria, n. g., n. sp., Physa prisca, 

 n. sp., Ampullaria Powelli, n. sp. 



Ward, Lester F. — Captain C. E. Dutton on the Hawaiians. 



(Science, February 9, 1883, I, pp. 9-10.) 



Report of an oral communication made by Captain Dutton before the Anthro- 

 pological Society of Washington, January 2, 1883, on the above subject, from 

 notes taken down and written out. 



Plant life, past and present. 



(Science, May 4, 1883, 1, pp. 358-359.) 



Abstract of a lecture delivered at the National Museum February 24, 1883. 

 Gives the system of botanical classification proposed in the lecture, and a table 

 showing the number of species of fossil plants belonging to each of the prin- 

 cipal groups for the several geological horizons, as also the number of living 

 plants of each group known or estimated. 



Dynamic sociology, or applied social science, as based upon 



statical sociology and the less complex scieuces. 



Two volumes, 12mo. Vol I, xx + 706 pp., vol. n, vii-f- 690 pp. New York, 

 D. Appleton <fe Co., 1883 (published June 2). 



The principal aim of this work is to point out the superiority of the method 

 of intelligent design over that of spontaneous self- adjustment in the attain- 

 ment of the objects of desire and of social advancement. It is a plea for the 

 legitimacy of intelligent action on the part of society in securing its own in- 

 terests aud advantage as against the philosophy of inaction which, in recog- 



