No. 2, September, 1920] HORTICULTURE 227 



1717. Anonymous. Spraying programs for the orchard and fruit, garden. Monthly Bull. 

 Ohio Agric. Exp. St a. 5: 67 -78. 1920. 



1718. Baker, C. F. Cooperative seed exchange. Philippine Agric. 8: 19-21. 1919. — 

 This paper gives a list of tropical plants, seeds of which are desired by the College of Agricul- 

 ture (Philippine Islands) in exchange for seeds of the College stock. — S. F. T release. 



1719. Ballou, F. H., and I. P. Lewis. Horticultural notes from the county experiment 

 farms of Ohio. Monthly Bull. Ohio Agric. Exp. Sta. 5: 52-57. 3 -pi. 1920.— Plans for prun- 

 ing, fertilizing, landscaping and management are given. — R. C. Thomas. 



1720. Ballou, F. H., and I. P. Lewis. Culture and feeding of the apple orchard. 

 Monthly Bull. Ohio Agric. Exp. Sta. 5: 43-48. 2 pi. 1920. — The article includes a comparison 

 of the value of fertilizers used respectively with the grass mulch and tillage systems of culture. 

 — R. C. Thomas. 



1721. Ballou, F. H., and I. P. Lewis. Pruning tests in young apple orchards. Monthly 

 Bull. Ohio Agric. Exp. Sta. 5: 85-90. 5 pi. 1920. — This is a report of tests made in orchards 

 of County Experiment Farms in Ohio. Seven methods are discussed briefly, viz., (1) Light 

 dormant pruning. (2) Heavy dormant pruning. (3) Light summer pruning. (4) Heavy 

 summer pruning. (5) Light dormant pruning with summer clipping of new shoots. (6) 

 Heavy dormant pruning with summer clipping of new shoots, and (7) No pruning. — R. C. 

 Thomas. 



1722. Balme, Juan. El olivo y su porvenir en Mexico. [The olive and its future in Mexico.] 

 Rev. Agric. [Mexico] 3 : 379-383. 2 fig. 1919. — History of olive culture in California and other 

 parts of the new world, and the possibilities of growing the tree in Mexico. — John A. Stevenson. 



1723. Beckwith, Charles C. The effect of certain nitrogenous and phosphatic fertilizers 

 on the yield of cranberries. Soil Sci. 8: 483-490. 1919. —As a result of one year's studies on 

 the effect of fertilizers on the yield of cranberries, the optimum amount of a mixed fertilizer 

 consisting of sodium nitrate, 75 pounds; dried blood, 75 pounds; rock phosphate, 300 pounds; 

 potassium sulfate, 50 pounds, was found to be 800 pounds. A mixture of mineral and organic 

 nitrogen did not prove superior to sodium nitrate alone. Calcium cyanamid and barium 

 phosphate proved unsatisfactory sources of nitrogen and phosphorus respectively. — W.J. 

 Robbins. 



1724. Bernard, Charles. La culture du the aux Indes neerlandaises. [Tea-culture in 

 the Dutch East Indies.] Rev. G6n. Sci. Pures et Appliquees 30: 17-18. 1919. — This paper, 

 by the Director of the Tea-Experiment Station in Buitenzorg, Java, covering the industry 

 indicated by the title, is of such conciseness as not to lend itself to further condensation 

 into an abstract. — G. J. Peirce. 



1725. Blair, W. S. Orchard cultivation. Fruit Growers' Assoc. Nova Scotia Ann. Rept. 

 55: 18-27. 1919. — Early plowed land contained 5.6 per cent more moisture in August than 

 land plowed two weeks later. In another experiment sod land contained 5.9 per cent moisture 

 in August while land cultivated six times and seeded to a cover crop on July 20 contained 14.1 

 per cent. Of the cover crops used crimson clover depleted the soil moisture least and millet 

 most. — Paul A. Murphy. 



1726. Boulger, G. S. [Rev. of: Bedford, Duke of, and Spencer Pickering. Science 

 and fruit growing : Being an account of the results obtained at the Woburn Experimental Fruit 

 Farm since its foundation in 1894. zxii-\-351 p. Macmillan & Co. : New York, 1919.] Jour. 

 Botany 58:28-29. 1920. 



1727. Boyer, G. Etudes sur la biologie et la culture des champignons superieurs. [Biol- 

 ogy and culture of mushrooms.] Mem. Soc. Sci. Phys. Nat. Bordeaux VII, 2: 233-344. 4 V^-r 

 20 fig. 1918.— See Bot. Absts. 5, Entry 1931. 



