No. 2, September, 1921] HORTICULTURE 127 



790. Brady, J. Protecting orchards from frost with smudge-pots. Agric. Gaz. New South 

 Wales 32: 25G. 1921. — The article briefly describe.9 the method used in California. — L. R. 

 Waldron. 



797. Brown, G. G. Fertilizer for orchard and bush fruits. Better Fruit 15'': S, 2.3-25. 

 1921. — The writer recommends the following fertilizing program based on observations and 

 e.xperiments performed at the Hood River Branch Experiment Station : No fertilizer should 

 be used for young trees if the ground is clean cultivated and new growth is ample; otherwise 

 5-1 lb. of nitrate of soda per tree. When trees are commencing to bear, but show poor vegeta- 

 tive growth, 2 pounds of nitrate per tree may be advisable. In old orchards nitrate of soda 

 may be of great value, excepting where alfalfa or clover is grown and plowed in; the latter 

 will furnish enough nitrogen to supply the needs of the tree. When alfalfa has "run out," 

 clean cultivation may be practiced for 1 or 2 years followed by new seeding of alfalfa. A 

 small amount of nitrate of soda may be added to advantage during the 1st year after seeding 

 to alfalfa or clover. — For strawberries the writer recommends a complete fertilizer made up 

 as follows: Nitrate of soda 800 lbs., superphosphateSOO lbs., beet char 400 lbs. — A. E. Murneek. 



798. Brown, W. S. The December freeze — some lessons from it. Oregon Agric. Exp. 

 Sta. Crop Pest and Hort. Rept. 3: 9-14. Fig. I-4. 1921. — This article consists of notes in- 

 dicating the relative behavior and resistance of varieties of fruit trees to winter freezes, 

 some methods of treatment of winter-injured trees, and cultural advice on possible means of 

 preventing such injury. — E. J. Kraus. 



799. Buntard, Edward A. The history of paradise stocks. Jour. Pomol. 1: 166-176. 

 1920. — This is an endeavor to straighten out the confused botanical relationships of the differ- 

 ent types of paradise stocks. The history of the various types is traced from the time of 

 Theophrastus. — L. H. MacDaniels. 



800. Chomley, F. G., and J. Arthur. Some experiences with fruit under irrigation. 

 Agric. Gaz. New South Wales 32: 273-276. 1921.— Methods of irrigation and culture are given; 

 also notes on varieties, and spraying to combat disease. — L. R. Waldron. 



801. CoiT, J. E. Mechanical theory of splitting figs. Associated Grower Vi 30-31. 

 1920. — Transpiration is suddenly stopped by a drop in temperature and the roots continue to 

 supply water to the figs, bursting them. If this hypothesis is correct the best general pre\'en- 

 tion would be the application of uniform moisture. Fermentation is caused by infection 

 with yeasts. If the fig is well sugared, yeast will do no harm. Fermentation by yeasts in- 

 vites other destructive fungi, such as blue molds, black smut, and dry rot. — E. L. Overholser. 



802. Condit, I. J. California fig soil and fertilizers. .Associated Grower V: 18-10. 

 1920. — Although very resistant to alkali, it is inadvisable to plant figs on soil containing more 

 than 0.03 per cent total salt. A high water table acts detrimentally on the fig crop, reduces 

 leaf surface, and retards the normal activities of the tree. — E. L. Overholser. 



803. Condit, I. J. Getting the people acquainted with the great American fig. Associated 

 Grower 1^: 18, 35. 1920. — The Kadota fig tree is resistant to unfavorable moisture conditions, 

 and a rank grower when given an abundant water supply. The 1st crop consists of much larger 

 sized fruit than the 2nd, the latter, however, being much better for preserving and canning 

 purposes. Caprification affects the fruit of the Kadota more noticeably than it does most 

 other common figs. The value of caprification depends upon ultimate use to which the fruit 

 is to be put; thus, caprified figs though better for drying are not so desirable for canning. 

 Being very adaptable to soil and climate conditions, the Kadota is propagated over a wide 

 range of territory. — E. L. Overholser. 



804. Condit, I. J. Points on practical culture of figs. Associated Grower 1-: 0, 46. 

 1920. — Caprification is now recognized as a necessity in the production of Smyrna figs. Three 

 capri fig trees must be planted for every 100 Calimj'rna trees. The female Blastophaga can 



