FIELD CROPS. , 729 



of the stock. With cabbage the greatest variations noted were in carboliy- 

 (Irates and with beans in ash. 



The morphology of the leaves of fruiting and nonfruiting cherry branches, 

 P. Seyot (Trar. Set. I'liir. Rcnncn, '> (1906), No. 2, po. 22-3.3, figs. .'/). — A study 

 was made of the morphology of the leaves of fruit-bearing and nonfruiting 

 shoots on cherry trees. In the external morphology the petioles of the leaves 

 from nonfruiting spurs are short and thick, while the limb of the leaf is rounded 

 at the base and tapers toward the tip. The marginal serrations usually bear 

 two small teeth. The leaf from the fruiting shoots has a longer and more 

 slender petiole, and the limb tapers to the petiole and is rounded toward itf? 

 summit, while the serrations have only a single secondary serrature. 



The different type leaves vary in their minute structure in that the wood 

 tissue of the leaves from nonfruiting spurs is regularly lignitied and is radially 

 disposed in the petiole. The liber is less thicliened, the palisade parenchyma 

 has longer cells, the intercellular spaces are large and regular, the lower epi- 

 dermal cells are small and irregular, and the stomata are very numerous on the 

 lower surface. The minute structure of leaves from fruiting shoots shows very 

 irregular sti-ucture of the wood, the liber thickened, the cells of the palisade 

 parenchyma short, the intercellular spaces scattered and irregular, the cells of 

 the lower epidermis larger and more irregular, and the stomata less abundant. 



Important differences in chemical composition were observed in the study. 



Note on the nature and composition of the leaves of the cherry, P. Seyot 

 (Trar. 8ci. Univ. Rcnncs, 5 {11)06), [lYo. i], i)p. i3S-i//0).— Analyses of cherry 

 leaves from fruit-bearing twigs, leaves at the base of these twigs and from 

 non-fruiting twigs showed that they varied in composition, leaves from the 

 base of fruit twigs being intermediate between the other two sorts. 



Concerning the albinism of sugar beets, O. Fallada {Mitt. Cliem. Tech. 

 Vers. Stat'. Cent. Ver. Rilhenz: Indus. Osterr.-Ungar., No. 191, pp. 1-7). — A de- 

 scription is given of a form of albinism in sugar beet leaves that is characterized 

 not only by the changed color of the leaves but also by important differences in 

 their chemical composition. The albino leaves are said to have a higher water 

 content and a lower lu'oportion of organic materials, especially protein and 

 nitrogen-free extract. They also have a higher content of potash and phos- 

 phoric acid, with a corresponding reduction in lime and silica^ 



FIELD CROPS. 



The reseeding of depleted range and native pastures, I). (Jriffiths {U. /S. 

 Dept. Ayr., Bur. Plant Indus. Bui. Ill, pp. 21, pis. 3). — The reseeding of ranges 

 and native pastures is discussed and the results accomplished in this line of 

 work are briefly considered. 



The number of native species used for this purpose is comparatively small, the 

 l)rincipal ones being Western wheat grass {Agropyron occidcntale) , which has 

 been successfully introduced into meadows on the eastern slope of the Black 

 Hills in South Dakota, bunch grass (.1. si)icatiim), successfully used on a small 

 scale upon denuded i)astures in eastern Washington, Elynius triticoides, which 

 inhal)its the low, moist, nonalkaline bottoms of the Great Rasin country and 

 also extends into the interior valleys of California, Poa lucida growing together 

 with E. triticoides in many localities in northeastern Nevada and southeastern 

 Oregon on sagebrush land irrigated by spring flood waters, and giant rye grass 

 {E. condensatus), which has l)een tri(Ml by rangers in the Rocky Mountain and 

 Great Basin regions and has the advantage of being very tenacious when 

 thoroughly established and of growiug on quite alkaline soil. 



