546 EXPEEIMENT STATION KECOED. 



stand of yellow pine during the seasons of 1910 and 1911, it appears that poison- 

 ing is not financially advantageous and that it would be better to sow more 

 heavily on unpoisoned areas, allowing for a certain loss by birds and rodents. 

 The cost of absolute protection afforded by wire screens was prohibitive. 



Sixth report of the state forester of Connecticut for the year 1912, W. O. 

 FiLLEY {Connecticut Slate 8ta. Rpt. 1912, pt. 6, pp. 455-531, pis. 6).— This re- 

 port comprises a resum§ of the work of the forestry department in all lines 

 since its establishment. Records are given of forest fires occurring in 1911 

 and 1912, together with a summary of forest fires for the period 1905 to 1912. 

 Operations on the state forests and forest plantations are reviewed and sug- 

 gestions are given relative to methods of increasing the forest resources of the 

 State. 



The report concludes with a paper by S. N. Spring on Forest Planting in 

 Connecticut. This pai>er shows the progress which has been made in forest 

 planting in that State since 1901, and also contains suggestions relative to the 

 establishment and care of forest plantations. 



Growing forest trees in western Nebraska. — Shrubs and ornamentals, 

 W. P. Sn\t)er (Nebraska Sta. Bui. 137, pp. 3-26, figs. i7).— Part 1 of this 

 bulletin describes experiments which have been conducted at the North Platte 

 Substation for several years to determine whether trees can be grown success- 

 fully without irrigation on western Nebraska table-laud under conditions which 

 obtain at the station. 



Plantings of nearly 30 species in plats of about 1 acre each were started in 

 1907. Each kind has been tried on both bench and table-land, the number of 

 each species varying from 200 to 1,000 or more. At the end of the 5-year 

 period the most promising deciduous trees are cottonwood, Carolina poplar, 

 Norway poplar, box elder, honey locust, hackberry. American elm, Russian 

 olive, and black walnut. The least promising deciduous species are black 

 locust, catalpa, Osago orange, Russian mulberry, green ash, and Russian 

 golden willow. "With one exception the results with conifers have been quite 

 discouraging. The best results were with 50 Black Hills spruce which were set 

 out in 1908. Of these nearly every one is living and making a fair growth. 



An account is given of the methods of es ablishing and caring for these 

 plantations, together with suggestions to persons planting trees. 



Part 2 of this bulletin briefly discusses the imiwrtance of fruits and orna- 

 mentals on the farm, and gives some information relative to sorts which are 

 adapted for the North Platte region. 



An extraordinary phenomenon in a mahogany (Swietenia mahogani) seed- 

 ling, M. Rama Rao {Indian Forester, 39 {1913), No. 7, p. 327).— The phenome- 

 non here noted consists of a mahogany seedling barely 10 months old which 

 produced normal and complete flowers. 



So-called " osage orange rubber" — a product of Kansas, C. P. Fox {Orig. 

 Covimun. 8. Internat. Cong. Appl. Chem. [Washington and New York^, 25 

 {1912), Sects. I-Ve, pp. 593-596). — The fruit of the Toxylon pomiferuni grown 

 in Ohio was examined as regards a possible source of rubber. The resin 

 obtained resembled a decomposition product of rubber, and it is thought that 

 possibly the fruit grown in the southern part of Kansas may produce a true 

 rubber. 



DISEASES OF PLANTS. 



Plant diseases, W. F. Bruck, trans, by J. R. Ainsworth-Davis {London, 

 Glasgow, and Bombay, 1912, pp. 152, pi. 1, figs. ^5). — In this book descriptions 

 are given of some of the more important diseases attacking cultivated plants, 

 and special emphasis is laid on the pathological modifications of the plant body 



