PRIZES OFFERED FOR PHOTOGRAPHS 

 OF LARGE TREES 



TWO prizes of $100 each are 

 offered for photographs of large, 

 wild, native trees in the United 

 States, by two members of the 

 American Genetic Association, who are 

 interested in forestry and wish to secure 

 data along somewhat novel lines. These 

 prizes are to be awarded as follows : 



One hundred dollars for photographs 

 of the largest nut-bearing tree. This 

 includes chestnuts, oaks, walnuts, 

 butternuts, pecans, etc. 



One hundred dollars for photographs 

 of the largest shade or forest tree, not 

 nut-bearing. This includes such trees 

 as the elm, beech, poplar, tulip-poplar 

 ("yellow poplar" or "tulip tree"), etc. 



Photographs of conifers will not be 

 considered. 



All photographs must be submitted 

 to the Journal of Heredity before July 

 1, 1915, and will become the property 

 of the Association. Photographs must 

 be taken by or under the direction of 

 those who send them in, and not pur- 

 chased from professionals or collections. 

 Competition is not confined to members 

 of the American Genetic Association, 

 but is open to the public. 



It is hoped that a collection of photo- 

 graphs, such as should result from the 

 offer of these prizes, will furnish some 

 reliable information about the maximum 

 size attained by North American trees, 

 and the regions and conditions under 

 which they attain their greatest de- 

 velopment. It is further hoped that 

 seed or other material from the largest 

 specimens may be used for propagation. 

 In order to make these offers yield 

 the necessary information, contestants 

 should comply with the following con- 

 ditions : 



Photographs must be on glossy paper, 

 not smaller than 4x5 or 334x53^ 

 inches, and must be of sufficient excel- 

 lence to allow reproduction in the 

 Journal of Heredity or elsewhere. 

 Photographs in which the tree is so 



small that its details can not be made 

 out, can not be considered. As much 

 information as possible should be fur- 

 nished about the tree in question, and 

 exact identification is particularly 

 necessary. For this reason the photog- 

 rapher should send a branch with 

 leaves and, if possible, flowers or nuts, 

 in order that the Association ma\' 

 identify it. The measurement of the 

 tree must be given in detail. In making 

 it the only method which may be fol- 

 lowed is to take the circumference of the 

 trunk at five feet from the ground. 

 The trunk must not be measured at a 

 point where its girth is increased by the 

 juncture of a branch; if it is so swelled 

 at a point five feet from the ground, the 

 measurement should be made at the 

 smallest diameter above the basal swell 

 and below the swell of the branches. In 

 such a case the fact .should be stated 

 when the photograph is sent, and the 

 exact point at which the measurement 

 is made should be indicated. It is 

 desirable that the full height of the tree 

 and spread of branches, as well as the 

 girth, should be stated; if they cannot 

 be measured exactly, they should be 

 estimated. Photographs should, when 

 possible, contain some object, such as a 

 human figure, or a horse and bugg\', 

 which will aid in giving a realization of 

 the .size of the tree; but such figure 

 should be beside, not in front of the tree. 

 It is necessary that one photograph 

 should include the whole tree. If there 

 are other trees growing beside it and 

 cutting off part of it these other trees 

 should be included in the picture. 

 A second photograph of the same tree 

 should be sent in, showing the trunk 

 only, with a little foreground. Each 

 contestant is thus required to send in 

 two photographs of the .same tree, one 

 showing the entire tree and the other 

 the trunk only. Contestants may send 

 photographs of as man\' different trees 

 as they like. 



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