460 EXPERIMENT STATION EECOED. 



Investigations show hellebore, lead arsenate, and Paris green to be the least 

 expensive of the treatments recommended. One lb. of hellebore to 5 lbs. of 

 air-slaked lime, or 1 lb. of hellebore to a barrel of water ; lead arsenate 2 lbs. 

 to 50 gal. of water ; Paris green 1 lb. to 150 gal. of water ; lierosene emulsion 

 containing 10 per cent lierosene; whale oil soap, 1 lb. to 2 gal. of water; white 

 laundry soap and Ivory soap, one 10-oz. bar to 2 gal, of water were all effective 

 in combating the pest. Attention is called to the fact that cultivation under 

 infested trees is of value since it disturbs the cocoons in the soil. 



A sawfly injurious to the gooseberry, G. LtJSTNEB (M filler's Deut. Odrt. 

 Ztg., 26 {1911), No. 25, p. 295, figs. 2). — The sawfly Nematus ventricos as Is re- 

 ported to have been a serious enemy of the gooseberry in Germany during the 

 early part of the season of 1911. 



The large larch sawfly (Nematus erichsoni), E. B. Dunlop (Zoologist, If. 

 scr., 16 (1912), No. ISlf, pp. 1^7-156).— A brief account of this sawfly, its 

 habits, injury, etc., in Great Britain. 



A contribution to the knowledge of the galls of North America, A. Trot- 

 ter (MarcelUa, 10 (1911), Nos. 1, pp. 28-32, pis. 2, figs. J,; 2, pp. 33-61, figs. 17).— 

 Eighty-eight galls collected by F. Silvestri in Oregon, Washington, California, 

 Arizona, Mexico, and Hawaii are here described, many of which are new. 



Information concerning ticks (Agr. News [Barbados], 10 (1911), No. 246, 

 p. 314). — A brief account of the occurrence of ticks in the West Indies. 



Some new North American Ixodidae with notes on other species, F. O. 

 BisHOPP (Proc. Biol. Soc. Wash., 2^ (1911), pp. 197-208, pi. i).— Two new 

 species and 2 new varieties are here described, namely, Ixodes banksi, taken 

 from muskrat (Fiber zibethiciis) in Arkansas; /. Icingi, taken from the badger 

 (Taxidea taxus) and other hosts in Wyoming and other western States; I. 

 cookei riigosus, taken from the dog in Oregon, Washington, and California; 

 and /. angustus woodi, taken from Baird's wood rat (Neotoma micropus), 

 in Texas. 



New laboulbeniaceous parasites of acarids, G. Paoli (Bedia, 7 (1911), No. 

 2, pp. 283-295, pi. 1 ) . — Three species of Rickia and 3 of Dimeromyces are here 

 described as new. 



Handbook of pathogenic protozoa, edited by S. von Prowazek (Handbuch 

 der Pathogenen Protozoen. Leipsic, 1912, pt. 3, pp. 249-360, pi. 1, figs. 50). — In 

 this third part (E. S. R., 26, p. 865), the pathogenic ti-ypanosomes are dealt 

 with by M. Mayer (pp. 249-323) ; the Cnidosporidia (Myxosporidia and 

 Microsporidia), by O. Schroder (pp. 324-3-^4) ; and the Sarcosporidia, by E. 

 Teichmann (pp. 345-360). 



A bibliography accompanies each paper. 



FOODS— HUMAN NUTRITION. 



[Refrigeration and food products] (Ber. II. Internat. KdUelcong. Wien, 1 

 (1910), pp. 308, pis. 3; 2 (1910), pp. 1085, pis. 2, figs. 67, dgtns. 109).— A num- 

 ber of papers were presented at the Second International Refrigeration Congress 

 at Vienna of special interest to students of nutrition and related matters. 

 Volume 2 contains the full papers and volume 1 the discussions, lists of mem- 

 bers, and other general data. 



Among others the following papers may be mentioned: Changes in the 

 Physical and Morphological Character of Foods (Meat, Fish, and Milk), by 

 Biitzler; Cooling Houses and Other Buildings in the Tropics, by J. F. H. 

 Koopman ; Studies of the Preservation of Horseflesh by Cold and Its Use for 

 Food Purposes, by A. Costa and N. Mori ; The Effect of Low Temperatures on 



