12 FOREWORD TO TEACHERS 



the means of the small school. Two sets are expensive : one, The 

 Natural History of Plants, by Kerner, translated by Oliver, pub- 

 lished by Henry Holt and Company, in two volumes, at $11 ; the 

 other, Plant Geography upon a Physiological Basis, by Schimper, 

 published by the Clarendon Press, $12 ; but both works are inval- 

 uable for reference. 



For a general introduction to physiological biology, Parker, 

 Elementary Biology, The Macmillan Company; Sedgwick and 

 Wilson, General Biology, Henry Holt and Company; Verworn, 

 General Physiology, The Macmillan Company ; and Needham, Gen- 

 eral Biology, Comstock Publishing Company, are most useful and 

 inspiring books. 



Two books stand out from the pedagogical standpoint as by far 

 the most helpful of their kind on the market. No teacher of 

 botany or zoology can afford to be without them. They are : 

 Lloyd and Bigelow, The Teaching of Biology, Longmans, Green, 

 and Company, and C. F. Hodge, Nature Study and Life, Ginn and 

 Company. Other books of value from the teacher's standpoint 

 are : Ganong, The Teaching Botanist, The Macmillan Company ; 

 L. H. Bailey, The Nature Study Idea, Doubleday, Page, and Com- 

 pany ; and McMurry's How to Study, Houghton Mifflin Company. 



