School Science and Mathematics 



The Joonul for all Progre$$ive Science ud MathemaLtics Teachers 



Its subscription list contains names of teachers in 

 all countries of the globe. It gives new ideas and meth- 

 ods of scientific and mathematical instructions — ^practical 

 articles on the teaching of science and mathematics. Sug- 

 gestive, illustrated descriptions on apparatus, experiments, 

 laboratory equipment and plans. Short, newsy, helpful 

 notes on the progress in science and mathematics. Speak 

 to your teacher friends about it. Get them to subscribe. 

 Subscriptions received any time. Yearly subscriptions $2.00. 



SCHOOL SCIENCE AND MATHEMATICS 



2059 East Seventy-second Place. Chicago, Illinois. 



THE PLANT WORLD 



THE PLANT WORLD is Indispensable to everyone seriously Interesttd 

 in Nature-Study, Botany, and Biology. The wide scope of its ARTICLES, 

 the discriminating character of its RE^'IEWS and the timely and suggestive 

 nature of its NOTES AND COMMENTS combine to make It the best single 

 magazine fqr Iceeping in touch with the advances of botanical science. 



It is authoritative without being highly technical. It is readable without 

 being merely popular. 

 Subscription $1.50 a Year. Sample Copy Gratis. 



Send us the names and addresses of twelve persons likely to be interested 

 In THE PLANT WORLD, and receive a free trial subscription for three 

 months. 



THE PLANT WORLD, Tucson, Arizona. 



Kindly mention Nature-Study Review when replying to advertisements 



