VI 
INTRODUCTION. 
connection with the manner in which an animal per¬ 
forms its life-functions. 
The directions for laboratory work are mainly in the 
form of questions which must be answered from direct 
observation. Comparisons and inferences are con¬ 
stantly required of the pupil. The exercises for review 
of note-book work enable pupils to systematize their 
knowledge. Useful vocabularies are frequently in¬ 
serted. 
For many valuable suggestions the author is in¬ 
debted to Miss Helen A. Gardner and Miss Mary E. 
Winn of the Girls’ High School, Boston, and Prof. B. 
H. Van Vleck of Boston University, who read the 
manuscript; and to Mr. Frank M. Whitney, principal 
of the Watertown, Mass., High School and Miss E. O. 
Patch of the Girls’ High School, Boston, who ex¬ 
amined the proof-sheets. Mr. Lyman G. Smith of the 
Roxbury High School and Mr. Arthur E. Sanford 
assisted in preparing some of the drawings, and many 
of the illustrations have been reproduced, by per¬ 
mission, from Agassiz’s “ Seaside Studies ” (Houghton, 
Mifflin, & Co.), “The Horse” by W. H. Flower 
(D. Appleton & Co.), various works published by 
Longmans, Green, & Co., and other sources. 
A LIST OF BOOKS. 
All the books on the list given below have been 
found useful to pupils, and nearly all of them have been 
reported as ‘ ‘ interesting ’ ’ by many pupils who have 
read them. Such books may be used to advantage in 
the preparation of Reports. The list was first printed 
by a branch of the Agassiz Society connected with the 
Roxbury High School of Boston, Mass. 
Abbott, Charles Conrad : 
A Naturalist’s Rambles about Home. 
Bird Land Echoes. Illustrated. 
Agassiz, Elizabeth and Alexander: 
Seaside Studies in Natural History. Illustrated. 
