SOURCES OP ASSISTANCES. 199 



The downy and all the other woodpeckers in Eckstorm's "Wood- 

 peckers" (pp. 131, illus.; $1.00. Houghton & Mifflin). 



Teeth, bones, fish, hen's egg, etc., in Payne's " One Hundred Lessons 

 in Nature Study " (pp. 200 ; $1.00. Kellogg & Co. ) 



"Interdependence of Insects and Flowers." How the mints, com. 

 posites, clovers, etc., entice and reward insects, in Gibson's " Blossom 

 Hosts and Insect Guests" (pp. 197, illus.; 80c. Newson & Co.) 



A list and brief description of injurious insects under the plants 

 respectively affected — 33 pages — also carpet-beetle, clothes moth, cock- 

 roach, etc., in Hunter's " Elementary Studies in Insect Life" (pp. 344, 

 illus.; $1.25. Crane & Co.) 



Golden-rod visitors, gall-makers, dragon-flies, chipmunks, etc., in 

 Needham's "Outdoor Studies" (pp. 90, illus.; 40c. Am. Bk. Co.) 



May-flies, cockroaches, true grasshoppers, crickets, bed-bug and 

 other bugs, cicada, etc., in Morley's " Insect Folk " (pp. 196, illus., 45c. 

 Ginn & Co. ) 



The monarch, promethea, polyphemus, the sphinxes, and about twenty 

 shorter studies in Dickerson's " Moths and Butterflies" (pp. 344, illus.; 

 $2.25. Ginn & Co.) 



The crayfish, earthworm, perch, etc., in Colton's "Zoology, Descrip- 

 tive and Practical" (pp. 375 and 204, illus.; $1.50. Heath & Co.) 



Annual Reports of the Entomological Society, and Mr. Nash's 

 Bulletin on the Birds of Ontario, free to schools on application to 

 the Minister of Agriculture, Toronto. 



Minerals, rocks, soils, pp. 10-63, in Brittain's " Teachers' Manual of 

 Nature Lessons" (pp. 118 ; 50c. J. & A. McMillan, St. John, N.B.) 



Logs and lumber, snails and slugs, snow-storm, farm operations, 

 scarlet-runner, etc., are catechetical lessons in Lochhead's "Outlines of 

 Nature Studies." Bulletin No. 142, O.A.C. (pp. 48; free on applica- 

 tion to the Ont. Agric. Coll., Guelph). 



Weeds of Ontario. Bulletin No. 128, O.A.C, Guelph (pp. 95, free). 



Stories of a cabbage butterfly, of a pound of butter, of an apple, of a 

 grain of wheat, of bees, etc., in "Stories in Agriculture." Bulletin 

 No. 124, O.A.C, Guelph (pp. 79, free). 



