No. 3, December, 19201 HORTICULTURE 169 



orchards, generally LOO trees in each orchard being used. A great many individual variations 

 were found, some had to do with inferior fruit, some with growth habit of the trees, some with 

 foliage, etc. Many strains <>f each of the citrus varieties studied were; found. By these 

 studies, die good and bad I r< es in differenl orchards were found. From the most productive 

 trees, which usually were of tin besl -train, selections of parent trees, as sources of bud wood 

 for propagation made. As a rule, the extent of the occurrence of trees of the off-type 



strains increased with the numbers of bud generation from the original parent trees of the 

 variety. Under the old methods, buds were selected from vigorous growing, generally non- 

 fruit-bearing wood, which generally came from the most vigorous and vegetative strains of 

 trees, which were generally least productive and bore inferior fruit. At the present time, fruit 

 bearing wood from productive trees are selected to get the bud wood and by this means this 

 tendency toward the introduction of vegetative strains is being largely, if not wholly, over- 

 come. The author states that experimental propagations have been made of all of the impor- 

 tant bud variations studied in the course of the investigations and enough evidence has been 

 secured from these propagations to warrant the statement that all of the important varia- 

 tions have been isolated through bud selection. He states, "The deisrable variations have 

 been propagated and planted on an extensive commercial basis by citrus growers in Southern 

 California so that at the present time there are thousands of acres of these trees available for 

 study."— The author thinks that one of the most important results of the investigations 

 has been the introduction of practical methods for keeping individual tree records in orchards. 

 As a result of such records accurate knowledge has been obtained as to the effect of various 

 pruning, cultural and fertilizer practices in crop yields, in addition to the bud selection 

 studies. — E. C. Auchter. 



1163. Tesnier, F. Culture du Loganberry aux Etats-Unis. [Loganberry culture in the 

 United States.] [Rev. of: Darrow, G. M. Culture of the Logan Blackberry. U. S. Dept. 

 Agric. Farmers Bull. 998. 1918.] Rev. Hortic. [Paris] 92: 14-16. Fig. 8-4- 1920. 



1164. Vincent, C. C. Results of pollination studies at Idaho University. Better Fruit 

 14 8 : 11-15. Tables 1-6. Feb., 1920.— This is a summary of pollination studies with the apple 

 as conducted at the Idaho Agric. Exp. Sta. during the seasons of 1911, 1912 and 1914. A ma- 

 jority of apple varieties were found to be practically self-sterile in Idaho. Methods of deter- 

 mination of self sterility in apples are discussed and the results of two, the paper bag and cloth 

 tent methods, are compared. Self-fertilized fruits were found to contain fewer or no seeds 

 at all, as compared with cross fertilized fruits. Further work showed that crosses of certain 

 varieties gave better results than others; all varieties of apples will not cross indiscriminately 

 with each other. Practical application of the results obtained is suggested. — A. E. Murneek. 



FLORICULTURE AND ORNAMENTAL HORTICULTURE 



1165. Acosta, Celsa. El Tararaco. [Amaryllis.] Revist. Agric. Com. y Trab. 3: 56. 

 1 fig. 1920. — A description of Hippeastrum reginae Linn, as a garden plant. 



1166. Anonymous. A Shakespearean garden. Nature 104: 411-442. 1920. — See Bot. 

 Absts. 6, Entry 1440. 



1167. Laumonnier, Ferard E. Plantes de rocailles et plantes de bordures herbacees. 

 [Plants for rockeries and herbaceous borders.] Rev. Hortic. [Parisl 92: 19-20. Jan., 1920. — 

 General statement urging more general planting of native and hardy species or varieties. — 

 E. J. Kraus. 



1168. McFarland, J. Horace. Roses remade for America. Garden Mag. 31: 93-98. 

 April, 1920. — Mentions men who have done most to improve roses in America and discusses 

 their work in connection with the varieties originated or improved by each. — H. C. Thompson. 



1169. Mottet, S. Les tulipes Darwin. [Darwin tulips.] Rev. Hortic. [Paris] 92: 10-11. 

 1 pi. (colored). Jan., 1920. — This class of tulips was first exhibited in France in 1S89 by Kre- 



