926 EXPERIMENT STATION RECORD. 



fish, blue suutisli, strawberry bass, rock bass, black bass, yellow perch, striped bass, 

 pike, catfish, eel, and chub are briefly discussed, and some pieces of fishing appara- 

 tus described. 



Fish culture in Ontario, G. A. MacCaixum (Ontario Dept. Agr. Bpt. 1896, pp. 201- 

 208, figs. 10). — The fact that farmers may render their land more productive and 

 their families more comfortable by adding fish farming to their customary pursuits 

 is noted. The requirements for carp ponds are briefly stated. Carp should not be 

 raised with other fish, and frogs, turtles, snakes, etc., should be kept out of the 

 pond. The black water beetle ( Hydrophilus picem), the yellow banded water beetle 

 (Dytiscus marginalis), the dragon fly (JEschna), the water flea (Gammarus pulex), and 

 the bladder wort ( Utricularia vulgaris) are noted as fish enemies. 



A revision of the American moles, F. W. True (Proc. U. S. Nat. Mus., 19(1897), 

 pp. 1-113, ph. 4, figs. 46, maps 4). 



Transplantation experiments with Lumbricidae, E. Joest (Arch. Entwick- 

 lungsmeeh., 5 (1897), pp. 419-569, pU. 2; abs. in Zool. Centbl., 4 (1897), No. 24, pp. 

 832-836). — In these studies, in which the morphology and the physiology of the 

 transplantations are discussed, Lumbricus rubellm and Allolobophora terrestris were 

 employed, mostly young worms without clitellem being used. It was found that 2 

 bodies of the same individual or of the same species would unite in a relatively 

 short time, but the parts of different species would not unite so readily. The 

 nervous system seems to have a very decided influence over the regeneration of the 

 parts. An interesting fact is noted, that the worms can live for a year without food. 



Treatise on concrete zoology. Vol. I, The cell and the protozoa, Y. Delage 

 and E. Herouard (Traite de zoologie concrete. Tome I, La Cellule et les protozoaires. 

 Paris: Schleicher Freres, 1896, pp. 584, figs. 870).— The first of a series of 11 volumes, 

 giving a summary of the animal kingdom. In this volume are discussed the cell 

 and its functions, its structure, chemical composition, physiology, etc. The protozoa 

 are described according to class, order, family, genus, and species. 



METEOROLOGY. 



Annual summary of meteorological observations in the United 

 States, 1897 (U. S. Dept. Ayr., Weather Bureau, Monthly Weather 

 Review, 25 {1897), No. 13, pp. 569-579, charts J).— This number of the 

 Weather Review is devoted to an annual summary of observations 

 on atmospheric pressure, temperature, precipitation, wind movement, 

 cloudiness, and other meteorological phenomena "based essentially 

 upon data received from about 150 regular Weather Bureau stations 

 and 30 regular Canadian stations, all reporting daily by telegraph." 

 The data are given in tables and charts and summarized in the text. 



"The lowest annual averages [of temperature] within the United States were: 

 Williston, 38.8°; Moorhead, 39.2°; Bismarck and Duluth, 39.5° each. The highest 

 averages were: Key West, 77. 2 C ; Jupiter, 74.1°; Tampa, 72.2°; Corpus Christi, 

 70.7°; Galveston, 70.2°. 



"The mean annual temperature was above the normal at 101 stations, below at 

 20, and normal at 12. . . . Maximum temperatures equaling or exceeding 105° 

 occurred at Shreveport, Topeka, Abilene, Phoenix, Yuma, Walla Walla, Redbluff, 

 Sacramento, aud Fresno. Minimum temperatures of — 25° or lower occurred at 

 Duluth, Moorhead, Bismarck, Williston, Minneapolis, St. Paul, Huron, and Havre. 



"The only portions of the country not visited by frost, assuming that frost does 

 not occur with air temperature above 32°, were the southern end of the peninsula 

 of Florida and the coast line of southern California. 



" The largest annual ranges of temperature were, as usual, in North Dakota and 



