PLANTIXG AND CARE OF TREES VI 



should prove of service outside of the geographically restricted 

 region described. 



The photographs of the twigs and of the fruit of the deciduous 

 trees are very nearly natural size. They have been slightly reduced 

 in production but all of them to same scale, except the fruits 

 of the Catalpa, the Chestnut and the Honey Locust as indicated 

 under these species. Line drawings or touched-up photographs 

 would no doubt show important details more clearly by emphasiz- 

 ing certain of the minute markings. Since, however, these details 

 are often obscure, and moreover receive full recognition in the ac- 

 companying text, it has been thought that a truer idea of the twigs 

 would be gained if they were left as they appeared in the photo- 

 graphs. Accordingly, they have not been "doctored" in prepara- 

 tion or reproduction. The leafy twigs of the cone-bearing ever- 

 greens have been more or less reduced as indicated under the de- 

 scriptions of the genera in the key. All the twigs of a single gen- 

 us, however, are on the same scale. 



Part II follows the same general plan as in the bulletin. Another 

 winter's study has made possible a number of additions, especially 

 among the habit characters and some minor corrections have been 

 made in the text. New habit photographs are given of the Eed 

 Mulberry, the Sassafras, the Swamp White Oak and the Chinqua- 

 pin Oak and bark photographs of the Carolina Poplar and the 

 Chinquapin Oak. Last winter's classes in Botany and Forestry 

 made use of galley proofs of the keys and descriptive text, and the 

 present year's classes have used the finished bulletin. The keys 

 especially have in consequence been considerably modified since 

 their first arrangement. Many of the explanatory phrases which 

 may appear to be unnecessary have been inserted at the demand 

 of the students. Where possible the most obvious characters have 

 been employed and though the keys in consequence have become 

 somewhat more cumbersome it is hoped they will prove more 

 usable. Errors and omissions have no doubt crept in despite the 

 efforts to avoid them. We would be grateful for any additions or 

 corrections that may be suggested in the descriptions or keys in 

 view of a possible further revision of the text 



Acnowledgements are due to the Storrs Agricultural Experiment 

 Station for the use of the half tone plates of figures 34, 37, 38, 45, 

 48, 49, and 50 in Part I, and for most of those in Part II; to 



