248 THE NATURE-STUDY REVIEW [5:9— dec. 1909 



In turning the pages of the book one misses all the old familiar hypothe- 

 tical problems concerning what A and B did, but finds instead of these time 

 honored puzzles, such problems as; "If kainit contains i2>2% of potash, 

 and muriate of potash contains 50% potash, how many pounds of kainit 

 will it take to supply as much potash as 40 pounds of muriate of potash?" 

 "What would it cost to spray the potatoes and apples, and treat all the oat 

 seed planted in within a mile of vour school?" 



"Wherein will the following ration fail, according to the feeding standard, 

 in meeting the requirements of a dairy cow giving 16.5 lbs of milk a day. 

 Ration: 35 lbs. corn silage, 10 lbs, corn stover, 5 lbs. corn, s lbs. wheat 

 bran." 



These problems were selected at random. It must be understood that 

 plenty of data for solving such problems have been presented either in 

 tables, or in preceding simpler problems. 



For the child whose experiences have come from farm life the book 

 should present arithmetic in a new light. It should make plain to him 

 many practical applications of the subject to things right at home, and 

 impress him with the fact that, after all, there is .something in arithmetic 

 besides merelv "doing suins." 



NOTES ON BOOKS AND PAMPHLETS 



(Some of the books mentioned have been received recently and may be 

 reviewed later.) 



Lessons in Nature-Study. By Prof. Herbert Brownell, of Peru, Neb., 

 contains many good suggestions for inorganic nature-stud}'. The price is 

 not stated, but is probably about 25 cts. 



Primer of Forestry. The entire book with this title is now available in 

 the free Farmers' Bulletins, 173 and 358. 



School Nature-Study. The London periodical with this title, official 

 organ of the School Nature-Study Union, regularly devotes most of its 

 space to articles dealing with the subject-matter of nature-study. The 

 secretary is H. E. Turner, i Grosvenor Park, Camberwell, S. E., England. 



Methods of Nature-Study. A pamphlet for use of normal school students 

 in methods of nature-study and elementary Science. By L. S. Hawkins, 

 State Normal School, Cortland, N. Y. Very suggestive to teachers who 

 conduct such courses. 



Minnesota Nature-Study. A course of study prepared for elementary 

 grades by Florence E. Lillie. Published by State Dept. of Public Instruc- 

 tion, Minneapolis. 



Nature-Study Exhibits. Suggestions for those interested will be found 

 in report of H. L. Drummer, Bath, N. Y., on tenth exhibition of Steuben 

 Co. Nature-Study Workers of the Public Schools. 



Biology in New Jersey. A syllabus prepared for the New Jersey Science 

 Teachers' Assn., by G. H. Trafton, of the Passaic High School, chairman of 

 a committee, contains a large amount of excellent nature-study because 

 pupils have not had this subject in the elementary schools. 



