Further Notes on the Pollination of Yucca and on Pronura and Prodoxus. By C. V. Riley Pp. 33.
Fourteenth Annual Report of the Trustees of the Peabody Museum of American Archæology and Ethnology. Vol. III. No. 1. Cambridge 1831. Pp. 41.
Noxious and Beneficial Insects of the State of Illinois. Fifth Annual Report. By Cyrus Thomas. Ph.D. State Entomologist. Springfield, Illinois. 1881. Pp. 232.
Report on the Statistics of Grape-Culture and Wine-Production in the United States for 1880. By William McMurtrie, Ph.D. Washington: Government Printing-Office. 1881. Pp. 101.
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The Manuscript Troano. By Professor Cyrus Thomas. Reprint from "The American Naturalist." Pp. 16.
Free Trade vs. Protection. By Henry J. Philpott. Des Moines, Iowa, State Leader Co. 1881. Pp. 21.
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Catalogue of the Phænogamous and Vascular Cryptogamous Plants of Indiana. By Professor Charles R. Barnes. Crawfordsville, Indiana. 1881. Pp. 38.
"Journal of the American Chemical Society," Vol. III, Nos. 1-6, January to June, 1881. New York: The American Chemical Society.
Bacteria. By Dr. Ferdinand Cohn. Translated by Charles S. Dolley. Rochester, New York. 1881. Pp. 30.
Remarkable Change in the Color of the Hair in a Patient under Treatment by Pilocarpin, etc.; and Case of Membranous Croup treated Successfully by Pilocarpin. By D. W. Prentiss, M. D. Philadelphia: J. B. Lippincott & Co. 1881. Pp. 15.
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Gesture-Speech.—Colonel Garrick Mallory, of the United States Army, delivered a lecture on "The Gesture-Speech of Man," at the last meeting of the American Association, in which he remarked that North America had showed more favorable conditions for the development of gesture-signs than any other thoroughly explored part of the civilized world. Its aboriginal population was scanty, and so dialectically subdivided, with sixty-five families of languages, some comprising twenty languages each, that few bands could readily converse with each other. The Alaskan tribes generally used signs not more than a generation ago. The use of gestures could not be accounted for by any theory of the poverty of Indian languages, for no such theories were true, neither was it correct to suppose that a gesture-language was originated by a certain tribe, or in a particular region, and thence spread. The sign-language among the Indians is not uniform, and it is no argument in favor of uniformity that the signs used by any of the tribes are generally understood by others, for signs might be understood without being identical with any before seen. Regarding the question, whether the signs were conventional or instructive, Colonel Mallory was of the opinion that sign-language, as a product of evolution, had been developed rather than invented, and yet it seemed probable that each of the separate signs had a definite origin arising out of some appropriate occasion, and the same sign might in this manner have had many independent origins, due to identity in the circumstances, or, if lost, might have been reproduced. The studies so far pursued led to the conclusion that at the time of the discovery of North America all its inhabitants practiced sign-language, though with different degrees of expertness. The language has been disused with some, but with oth-
