534 EXPERIMENT STATION RECORD. 



in the Zeeland Horticultural Garcleus. Tbe data given cover the period 1905 to 

 1913, inclusive. 



The pollination of apples and pears, G. H. West {Trans. Eans. State Hort. 

 Soc, 32 (1912-13), pp. 38-50). — This is largely a review of the American litera- 

 ture on the subject. 



The influence of chemical fertilizers on the ripening time of pears, G. 

 RivifeRE and G. Bailhache (Jour. Soc. Nat. Hort. France, 4. ser., 15 (1914), 

 June, pp. 435-438). — The results of the authors' experiments with pear trees as 

 determined for the first season indicate that a complete fertilizer may retard 

 rather than hasten the inpening period of i^ears. 



Olive culture in Tunis, C. Campbell (Bui. Dir. Gen. Agr. Com. et Colon. 

 Tunis, 18 {1914), No. 18, pp. 375-388).— A brief survey of the olive industry in 

 Tunis with special reference to cultural conditions and types of olives grown 

 there. 



Study of the influence of various grape stocks on the quality and quantity 

 of the harvest, H. Faes and F. Porchet {Terre Vaud., 6 {1914), Nos. 15, pp. 

 179-181. fig. 1; 16, pp. 187, 188, fig. 1; 17, pp. 197-199, fig. 1; 23, pp. 255-257, 

 figs. 4; 24. pp. 265, 266, figs. 2; 25, pp. 275-277, fig. i).— In continuation of the 

 previous report (E. S. R., 30, p. 43) data are given for 1913 relative to the 

 adaptability of a number of pure American, American hybrid, and French- 

 American hybrid grape stocks for the Chasselas grape. 



On the cultural effects of the time of pruning grapes and their i*elation 

 to the physiological effects, J. L. \\D\i. ■ iCompt. Rend. Acad. Sci. [Paris'], 

 158 {1914), No. 17, pp. 1192-1194). — Pruning experiments conducted during the 

 3 years 1911-1013 led the author to conclude, in general, that other conditions 

 being equal the time of pruning moditios only slightly the number of bunches of 

 grapes which are borne. 



With extreme late pruning the bunches are more vigorous and the i)roportion 

 of imperfect bunches and aborted flowers is less. The individual berries are 

 larger, heavier, and more numerous. The growth is more rapid for late pruned 

 vines and continues for a longer time. The vegetation is at times diminished 

 and at times increased by spring pruning just as in winter pruning. These 

 positive or negative variations in vegetation progress or retrogress in more or 

 less regular order with the progression of the time of pruning. The data here 

 considered deal with pruning operations conducted at intervals from the first 

 of January to about the middle of April. With vines pruned after the middle 

 of February, the later the pruning the greater the retarding effect on bud swell- 

 ing and the flowering season. 



The cultural results here noted are attributed to a disturbance either in one 

 direction or the other of the stored-up food supply and the recently assimilated 

 material. This phase of the subject is here briefly discussed. 



Spraying in relation to the flowering season, L. Lebrun {Prog. Agr. et Vit. 

 {Ed. VEst-Centre), 35 {1914), No. 23, pp. 711, 7i2).— Experiments and obsen-a- 

 tions conducted by the author in 1913 and here briefly noted indicate that 

 solutions of copper applied for the control of grape mildew during the blooming 

 period are more or less injurious to the blooms and newly-set fruit and may 

 result in a short crop. The application of copper salts in dust form during 

 the flowering period does not appear to cause such serious results. 



Strawberries, J. A'ercier {Jour. Soc. Nat. Ilort. France, 4. ser., 15 {1914), 

 Mag, pp. 349-375, fig. 1). — This comprises the results of an investigation' with 

 special reference to conditions in France relative to the influence of soil and 

 fertilizers on the yield, chemical composition, size, and edible qualities of 

 strawberries. 



