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THE GUIDE TO NATURE 



not in the slightest obligation to the 

 managers of the Kroeger factory. Our 

 acquaintance with the managers has 

 been limited to two or three calls when 

 we were looking for a piano. We are 

 happy to say that the Kroeger upright 

 is the best that can be purchased at its 

 price. If any other maker or dealer 

 were to offer to remove the instru- 

 ment and substitute his make that 

 sells for the same price, and do it free 

 of expense for the exchange, we would 

 decline his offer. If you intend to buy 

 a piano, investigate as we did, and if 

 you follow our example you will be as 

 happy as we are in the choice of a 

 Kroeger. The address is Kroeger Pi- 

 ano Company, Stamford, Connecticut. 



The new greenhouses at the Uni- 

 versity of Illinois, in addition to the 

 customary heating arrangements, will 

 also be connected with a refrigerating 

 plant. By this means, throughout the 

 year, sections can be kept at any tem- 

 perature desired, for whatever experi- 

 ment or observation may be under way. 

 Portions of the greenhouses where 

 work on plant diseases is being done 

 can be thoroughly "quarantined" from 

 other parts. Even the humidity of the 

 atmosphere is under control. The spe- 

 cial object is the investigation of re- 

 sistance, immunity, and the like. 



Acknowledgment. 



Credit is due to Doubleday. Page & 

 Company for permission to copy from 

 "Country Life in America" the central 

 part of the frontispiece of our Decem- 

 ber number, representing a pigeon fly- 

 ing upwards in the loft. Acknowledg- 

 ment is also given to Mr. Henry Wy- 

 sham Lanier for courtesy of the photo- 

 graph. 



Interest in Domestic Pets. 



Enlist every child's interest in do- 

 mestic pets and make young natural- 

 ists of them as soon as possible. But 

 guard against making them mere col- 

 lectors of dead animals. It is living" 

 not dead biology that quickens the 

 sensibilities and deepens the child's 

 conception of the world. Beware of 

 a person who doesn't like animals; 

 something is deeply wrong with such 

 a person. — Dr. George M. Gould in 

 "The Infinite Presence." 



I have -aid that sympathy with the 

 whole world of living things is the 

 prime requisite of learning truth. This 

 is true whether the truth be scientific, 

 philosophic, or religious. It is espe- 

 ciallv so with children. — Dr 

 M. Gould. 



George 



DR. GEORGE M. GOULD AXD DOUGLAS, ATLANTIC CITY, NEW JERSEY. 

 Dr. Gould is an AA Member and under this picture writes, "Will be on the lookout for you!" 



