88 HOKTICULTURE [BoT. Absts., Vol. X, 



555. Brooks, Charles. Apple scald — its cause and prevention. Better Fruit 15® : 24-26; 

 15': 11-12. 1921. — The author presents a popular discussion of apple scald and of experi- 

 ments conducted to study means of control. [See also Bot. Absts. 2, Entry 1143; 4, Entry 

 1617.]—^. E. Murneek. 



556. Burns, W., and L. B. Kulkarni. Some observations on the roots of fruit trees. 

 Agric. Jour. India 15 : 620-626. PL 35-87, fig, 1-2. 1920.— Observations on the spread of roots 

 of citrus and guava trees are recorded. — J . J. Skinner. 



557. Cardinell, H. A. Some indirect methods in extension horticulture. Proc. Amer. 

 Soc. Hort. Sci. 16: 166-171. 1919 [1920]. — A discussion is presented of the development of 

 horticultural extension work in Missouri, explaining some indirect methods used in promoting 

 the work, such as: Assisting local dealers to select proper pruning tools and spray supplies; 

 maintaining a list of orchards for sale or lease; publishing selling prices of fruit; and assisting 

 merchants in disposing of their fruits. — H. W. Richey. 



558. Crubss, W. V. Rain damage insurance. Monthly Bull. Dept. Agric. California 

 10: 58-66. 1921. — The installation of evaporators by vineyard owners permits more thorough 

 ripening of the grapes, thereby greatly increasing the yield and quality of the dried product. 

 An air blast progressive tunnel type of evaporator with furnace equipped to burn oil or wood, 

 and with cars and tracks to facilitate handling of the trays, is recommended. — E. L. Overholser. 



559. [Druce, G. C] [Rev. of: Farrer, Reginald. The English rock garden. 2 vol. 

 Ixxiv + 504 p., via + 524 p. T. C. & E. C. Jack: London and Edinburgh, 1919. £ 3. 3s net.] 

 Bot. Soc. and Exchange Club British Isles Rept. 5: 591-593. 1919 [1920]. 



560. Durst, C. E. The development of practical horticulture, and its relation to the farm 

 bureau movement. Proc. Amer. Soc. Hort. Sci. 16: 155-162. 1919 [1920]. 



561. Evans, J. A. Patch-budding large limbs and trunks of pecan trees. Texas Agric. 

 Exp. Sta. Circ. 20. 7 p. 1920. — Detailed directions for patch-budding are given. — L. Pace. 



562. Fag AN, F. N. Orchard soil management. Trans. Indiana Hort. Soc. 1919: 58-62. 

 1920. — An account of experimental results in Pennsylvania orchards with reference to com- 

 mercial fertilizers, mulches, and cover crops is presented. The importance of maintaining 

 the content of organic matter in the soil is emphasized. — Max W. Gardner. 



563. Farnsworth, W. W. Opportunities in small fruit growing. Trans. Indiana Hort. Soc. 

 1919: 25-31. 1920. — An account is given of a grower's experience with strawberries, rasp- 

 berries, and currants. — Max W. Gardner. 



<» 



564. Gardner, V. R. Pruning the apple. Trans. Indiana Hort. Soc. 1919: 49-55. 1920.— 

 The terms pruning and training are differentiated. Pruning of the bearing tree should consist 

 of "a thinning out of small branches throughout the top of the tree in such a manner that a 

 more abundant supply of light is made available for each and every fruit spur." Heavy 

 pruning the first 3 or 4 years to force rapid growth is advised. — Max W. Gardner. 



565. Hooper, Cecil H. Pollination of fruits. Jour. Ministry Agric. Great Britain 28: 

 124-133. 1921. 



566. Jbnks, a. R. The county horticultural agent. Proc. Amer. Soc. Hort. Sci. 16: 

 163-166. 1919 [1920]. 



567. Keeblb, Frederick. Intensive cultivation. Rept. British Assoc. Adv. Sci. 1920: 

 200-214. 1920. — The author discusses the status of horticulture in Great Britain during the 

 World War. The key-note of the discussion is the part which intensive cultivation has 

 played in the past, and which it should play in the future. The great necessity of education 

 for the average intensive cultivator along horticultural lines is urged. — C. L. Wilson. 



