STORliS AGRICULTURAL EXPEIUJIKNT STATION'. 309 



tei'iiis iised iii tlieii- description. The keys in eonse- 

 quenee liave been considerabl)' modified Ijefore iiiial paging. 

 Many of tlie explanatory phrases wliieh may appear to 

 be unnecessary have been inserted at the demand of the students. 

 Where possilde the most obvious cliaraeters liave been employed 

 and though the keys in consequence ha\-e Ijecome somewhat more 

 cumbersome it is hoped they will prove more usalile. Errors 

 and omissions have no doubt crept in despite the elforts to avoid 

 tliem. AVe would be grateful for any additions or corrections tliat 

 may be suggested in the descriptions or keys in \-iew oli a possible 

 revision of the text. 



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 luit all of them to the same scale, except tlie 

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

 indicated under these species. Line drawings or touehed- 

 up i)hotographs would no doubt sliow important details 

 more clearly by emphasizing certain of the minute markings. 

 Since, however, these details are often o))scure, and moreover receive 

 full recognition in the accompanying text, it has been thought that 

 a truer idea of the twigs would be gained if they were left as they 

 appeared in the photographs. Accordingly^, they Iiave not been 

 "doctored"' in preparation or reproduction. The leafy twigs of the 

 cone-bearing evergreens have been more or less reduced as indicated 

 imder the descriptions of the genera in the key. All the twigs 

 of a single genus, however, are on the same scale. 



LITERATURE 



The following is a list of books which will Ijc fmtnd useful 

 to the student of Xew England trees. They have been freely 

 consulted, as well as others not listed, and have lieen of value 

 in determining the ranges and wood characteristics of the indi- 

 vidual species, in confirmation of bark and habit characters, and 

 to a less degree of the other winter features. The dimensions of 

 the trees in the lieading '"Haljit" and the information under the 

 heading "Distribution" have Ijeen taken with little change from 

 Dame & Brooks' Handbook, except what is given in the subhead- 

 ing "In Connecticut'' which was obtained from the catalog of 

 the flo^-ei'ing plants and ferns of Connecticut; lUdlctin No. 14, 



