NATURE STUDY IN SCHOOLS. 147 



BOOK NOTICES. 



The Grasses and Sedges of the Northern United States, 

 Illustrated. An Easy Method of Identification, by Edward Knobel. 



Boston, Bradlee Whidden, 1899. 



This is a timely publication and one that meets a long felt want. In 

 this little volume, Mr. Knobel has given us an easy method of identifying 

 the grasses, sedges^ and rushes which grow so plentifully about us. 



The descriptive text, although short, is ample, taken in connection with 

 the exceedingly fine illustrations, to enable even one who knows nothing of 

 plants of these groups, to identify quickly and with certainty any species 

 which comes to han . 



The full plate illustrations are particularly fine, and well deserve special 

 mention. No teacher can afford to be without this book. 



Field Key to the Land Birds, Illustrated by Edward Knobel 

 BostoN Bradlee Whidden, 1889. 



In this little book Mr. Knobel has described one hundred and fifty-five 

 species of common land birds. The method used is the comparative, one 

 which is always the best for beginners. That is, a common species will be 

 described, and other allied species will be compared with it. 



Accompanying the text are a number of excellent illustrations which 

 will be found of great value to the young student. The book is further 

 embellished and rendered more valuable by the addition of nine plates, contain- 

 ing figures of one hundred and fifty species of birds, hand colored. Although 

 in some cases, we wish that the shades of color, on some of the birds, had 

 been mixed with a little more care, and in some few instances better applied 

 regarding position, the coloring has been done with great neatness and in the 

 majority of cases these colored figures, small though they are, will greatly 

 aid the student in identifying the species. We cordially recommend this 

 work as an elementary book on birds. 



