356 EXPEEIMENT STATION EECOKD. 



Notes on the mammals of the Lake Maxinkuckee region, B. W. Evermann 

 and H. W. Clark (Proc. Wash. Acad. Sci., 13 (1911), No. 1, pp. 34). — Observa- 

 tions of 31 forms in the region of Lake Maxinkuckee, a glacial lake about 2| 

 miles long and li miles wide in the southwest comer of Marshall County, Ind., 

 are here reported. 



Destruction of rats in Japan (Daily Cons, and Trade Rpts. [U. Sf.], 15 

 (1912), No. 82, p. 86).— A. bounty of 2^ cts. gold per head offered by the city of 

 Kobe was claimed for 354.291 rats killed during 1911. 



Text-book of protozoology, F. Doflein (Lehrdueh der Protozoenlmnde. 

 Jena, 1911, 3. enl. ed., pp. XII +10^3, figs. 951; rev. in Amer. Nat., 46 (1912), No. 

 5ff5, pp. 308, 309).— A third enlarged edition (E. S. R., 23, p. 357). 



Observations upon the morphology of parasitic and cultural amebae, C. F. 

 Craig (Jour. Med. Research, 26 (1912), No. 1, pp. 1-37, pis. 2).— The author 

 finds that the organisms here considered, namely. Entamoeba coli, E. histolytica, 

 E. tetragena, and Amozba lobospinosa n. sp., differ greatly in morphology and 

 life history, and that each possesses characteristics which entitles it to specific 

 rank. 



Report of the dominion entomologist, C. G. Hewitt (Canada Expt. Farms 

 Rpts. 1911, pp. 207-235, pis. 3, figs. 3). — This report includes the text and regu- 

 lations of the destructive insect and pest act of 1910 and accounts of the brown- 

 tail and gipsy moths, fumigation with hydrocyanic acid gas, insects affecting live 

 stock, particularly the warble fly (Hypoderma lineata) and ticks (Dermacentor 

 albipictus) on horses, thrips (thought to be Anaphothrips striatus) attacking 

 cereals, the white-marked tussock moth, and the narcissus fly (Merodon 

 equestris). The narcissus fly is now a serious pest in British Columbia, some 

 50,000 narcissus and daffodil bulbs having been destroyed near Victoria during 

 the year. The author states that he has found the larvte of this pest present 

 in bulbs imported into Ontario from Holland. 



Brief notes on the more important insects reported to the division of ento- 

 mology during the year are arranged under the headings of insects affecting 

 field and root crops, fruit and fruit trees, forest and shade trees, and garden 

 and greenhouse. The apicultui-al work of the year is also noted. 



The discovery in 1911 of winter webs of the brown-tail moth at Pomeroy 

 Ridge, Charlotte County, New Bruns'R-ick. is said to be the first conclusive 

 evidence of the establishment of this pest in New Brunswick. 



Report of field entomologist, G. P. Weldon (Colorado 81a. Rpt. 1911, pp. 

 32-3//). — In experiments at Rifle both fall and spring applications of lime- 

 sulphur while the trees were dormant controlled the peach twig borer. The 

 tobacco preparations Blackleaf and Blackleaf 40 were also used in the experi- 

 ments but proved to be of little value in controlling this pest. 



Arsenite of zinc is said to have given promising results in the control of the 

 codling moth, in some cases doing better work than arsenate of lead. Experi- 

 ments indicate that but little can be accomplished in applying a fall spray 

 for the green peach aphis, unless the application be made very late in the 

 season after the eggs have all been deposited. 



Trichogramma pretiosa, which was found in abundance the previous year 

 and parasitized as high as 90 per cent of the codling moth eggs, is said to 

 have almost totally disappeared during the season of 1911. 



Report of entomologist, E. W. Berger (Florida Sta. R^jt. 1911, pp. XL- 

 LVII). — The author first gives a brief report of the status of fungus diseases 

 of white fly during the year, based on observations at Gainesville, New Smyrna, 

 De-Land, Winter Park, St. Petersburg, the Sub-Peninsula, etc. This is followed 

 by brief accounts of the culture of red Aschersonia ; germination tests of red 

 and yellow Aschersonias ; the preservation of fungus in cold storage; soap and 



