40 EXPERIMENT STATION EECOED. 



some rows may deviate much farther from the mean of the line than did the 

 mother plant. This will produce indexes veiy large either positive or negative. 

 A priori there is no reason for excluding such small selections. They ought, 

 on the selection theory, to result in rows which would deviate less from the 

 mean of the line than rows grown from large selections. Only one such ' small ' 

 selection is included in the present data. The analysis of the selections for 

 height of plant shows essentially the same results as found for yield of grain. 

 Analysis by the method of deviations shows that in only one instance is the 

 excess in the direction of the selection large enough to have any possible sig- 

 nificance. For reasons discussed in the text it is probable that this one large 

 deviation is not significant in connection with the selection. Indexes of selec- 

 tion for height of plant have been calculated for several of the selections. 

 Since they show nothing essentially different from those for yield they have 

 not been included in the present paper. 



" On the whole the results obtained in this study give no evidence that selec- 

 tion for three years has modified any of the characters studied. The one or 

 two apparent exceptions discussed in the paper might very easily arise in 

 chance distributions where so small a number of years are considered. The 

 weight of the evidence against an effect of selection far outweighs the evidence 

 for such an effect. It must be concluded that in the present material and 

 for the characters studied, selection for three years has produced no effect 

 which can be detected by the methods used. It is proposed to continue a por- 

 tion of these selections and later to attempt an individual analysis rather than 

 the statistical one presented in this paper." 



Peanut growing in the cotton belt, H. C. Thompson ( U. 8. Dept. Ag'r., Office 

 Sec. Spec. [Circ], 1915, Apr. 12, pp. S).— 'Cultural methods and uses of the 

 crop are described. 



Marketing Maine potatoes, C. T. More and G. Y. Branch ( U. S. Dept. Agr., 

 Off- Sec. Circ. 48 {1915), pp. 7). — ^This reviews existing market conditions 

 among the Maine potato producers. As factors in causing unsatisfactory prices, 

 lack of comprehensive and efficient marketing systems and of established grades 

 and brands as a basis for advertising are noted. As suggestions for improve- 

 ment, the establishment of uniform grades and brands, the exercise of greater 

 care in handling, thorough inspection, and the adoption of seed types, standards, 

 and guaranties, are offered. Rules for grading are also suggested. 



Potato growing' in western "Washington, J. L. Stahl (Washingtoti Sta,, 

 West. Wash. Sta. Mo. Bui., 1 (19U), No. 6, jW- 2-6, figs. 2).— This gives cul- 

 tural directions and methods of storage and marketing, together with descrip- 

 tions of seven varieties that have given the best results in western "Washington. 



Lime-sulphur v. Bordeaux mixture as a spray for potatoes, III, M. T. 

 MuNN {Neio York State Sta. Bui. S97 (1915), pp. 95-105, pis. 2).— The experi- 

 ments described in this bulletin are in the main repetitions of those previously 

 noted (E. S. R., 28, p. 43.3). 



" The results agree essentially with those previously obtained. They show 

 that lime-sulphur is harmful rather than beneficial to potatoes. Bordeaux 

 mixture prevented tipburn to a considerable extent, made the foliage darker 

 green, prolonged the period of growth, and increased the yield. Lime-sulphur, 

 on the contrary, aggravated tipburn, dwarfed the plants, shortened the period 

 of growth, and reduced the yield. As neither early blight nor late blight ap- 

 peared in the experiment field during the season, nothing was learned concern- 

 ing the comparative value of the different spray mixtures for the control of 

 these diseases." 



