256 Agricultur, Horticultur, Forstbotanik. 



plot of 5 acres the low yield of less than 60 »r of lint of Tinnevelly 

 cotton was all that was obtained. This is too poor at any rate for 

 any one hiring labour. 



A long and interesting account is given of the laborer difficulties 

 which had to be overcome in this district of Ceylon. On about 

 31 acres of Egyptian cotton a jneld of about 120 H," of lint was ob- 

 tained. On 3i acres of Upland cotton the yield per acre was 180 ö,'. 

 20 acres of Sea Island cotton gave a return of lint at the rate of 

 116 ö: per acre. It should be noted with reference to the compara- 

 tively low yields that the land contained very many tree stumps and 

 that some of the lint was stolen. The cottons were valued in Eng- 

 land and the sea Island being prieced at lOd to Is and the 

 Egyptian at 8*^ to 9^d. Both had sufifered from admixture in 

 packing. 



Directions for the cultivation and collection of cotton are given. 



W. G. Freeman. 



Munson, W. M., Orchard Notes, 1906. (Bull. 139, Maine Agric. 

 Exp. Station (Orono, Me.), p. 51—64, fig. 1—2. Mar. 1907.) 



A report on orchard work in continuation of bulletins 89, 122 

 and 128. The experiments were made with apple orchards in Ken- 

 nebeck Co. and covered fertilizing, mulching, renovating, top 

 grafting, pruning and the use of cover crops. Mulched trees jnelded 

 less than one third as much as those given stable manure. Much 

 individual Variation in yield of trees of the same variety was noticed 

 and experiments are in progress to determine if cions from the 

 more and from the less fruitfull trees show similar differences in 

 yield. The variations in productiveness in question are very great; 

 the 10 best trees one from each of the ten plots in the renovation 

 experiment yielded during four seasons a total of 131 barreis of 

 fruit while the second best 10 trees gave only 39 barreis. Rye was 

 found to be a good cover crop preventing erosion on hillsides 

 whereas wetches did not. The al)ility of quince Stocks to thrive on 

 heavy clay soll where pear roots fall makes dwarf pear orchards 

 of value in such situations. Walter T. Swingle. 



Schwarz, G., The Longleaf Pine in Virgin Forests. (New 

 York. John Wiley & Sons. 135 pp. 1907.) 



In a small volume the author has brought together in a populär 

 form some general informations concerning the growth and develop- 

 ment of the Longleaf Pine, and has divided the subject matter into 

 the following chapters: 



I. Character of V^irgin Longleaf Pine Forests. II. Natural Rota- 

 tion: Evolution in the Forest. III. Tolerances. IV. Fires. V. The 

 Soil Cover. VI. Injur}^ to Seedlings caused bj'' Hogs. VII. Rate 

 of Growth in Virgin Forest. VIII. Forest Management. IX. The 

 Aesthetics of Forestry. 



The volume is illustrated with 23 plates, a Map showing the 

 distribution of Pimts palustris, and two diagrams showing the rate 

 of diameter growth. von Schrenk. 



ausgegeben: lO September lOOT. 



Verlag von Gustav Fischer in Jena. 

 Buchdruckerei A. W. Sijthoff in Leiden. 



