156 NA TURE-STUD Y REVIEW [17:4r-April, 1921 



Minerals 



A collection of the minerals of the region and exhibits of the 

 local mining industries should be in the Camp Museum. 

 Twenty minerals and 20 rocks in compartments, $4.50, Chicago 

 Apparatus Company, 32 S. Clinton St., Chicago. Also Ward 

 Nat. Hist. Est. Rochester, N. Y. 



Museum 



Making a case is a good manual training project. Use vials 

 for seeds and soil. Labels. Exhibits of local industries. 



Riker Mounts for insects. Kny-Scheerer Co., 225 4th Ave., New 

 York. 



Notebook 



The Comstock Publishing Co., Ithaca, New York is putting on the 

 market a loose leaf notebook especially adapted to nature-study 

 in the field. It also has pages for accoimts, music, and photos. 

 The name of the camp or school will be printed on the outside. 

 Every camper should have one of these notebooks. Price about 

 $1.25, at least as near cost as market conditions will allow. 

 An indoor or rainy-day notebook printed by Mr. Marion Weston, 

 R. I. College of Education, Providence, Rhode Island, is especi- 

 ally recommended for this phase of nature-study. Five to eight 

 outline drawings per page, 40 pp. 8>^" x s}4\ 8 pages flowers, 

 8 tree leaves, 14 birds, to be colored. Other pages to be printed. 

 Set with index pages and cover, 50c. postpaid. Separate pages 

 2C. each. 



Pictures 



Perry Picture Co., Boston, Massachusetts. 7" x 9' pictures in 

 natural colors of birds, animals, minerals, fruits, etc., 2c. each, 

 assorted as desired. No order for less than 25c. 

 Thompson Blue Prints, Syracuse, New York. Subjects general. 



Stereopticon Lantern 

 Acetylene burner and prestolite tank for camps without electric- 

 ity. 



Tree Survey 

 Send for Horticultural and Pomological Investigations, B. P. I., 

 Form number 219, U. S. Dept. Agriculture, Washington, D. C. 

 Instructions for taking a Bird Census, U. S. Dept. Agric, Bureau 

 Biological Survey, Henry W. Henshaw, Chief, were published 

 in 1914 and 1915. 



