200 



(6) Difference in susceptibility of different sides of the leaf. — Eight hun- 

 dred and twenty-eight leaves of the apple, grape, sassafras, peach, and 

 cotton-wood were painted on the upper or lower side or on both sides. 

 The three arsenic compounds were used in different ways. In the case 

 of the apple, grape, and sassafras the lower side was much more sus- 

 ceptible than the upper. "Except iu the case of the peach an appli- 

 cation to both sides was more iujurions than to either side alone, but 

 not as injurious as the sum of the application to the two sides." In the 

 case of the peach the three different forms of application produced 

 about the same amounts of injury. 



(7) Relation of earlier to ultimate effects of the poisons. — Observations 

 made two and eight days after the application of the arsenic compounds 

 to grape leaves indicated that white arsenic and London purple pro- 

 duce their eifects more quickly than Paris green, and that young leaves 

 and the lower side of the leaf are affected more quickly than older 

 leaves and the upper side. 



Connecticut Storrs Station, Bulletin No. 6, August, 1890 (pp. 16). 



Grasses and legumes, C. D. Woods, B. S., and 0. S. Phelps, 

 B. S. — The purpose of this bulletin is to call attention to (1) some of 

 the plants grown iu the grass and forage garden of the station, (2) the 

 outcome of trials on the growth of plants for hay and green fodder, 

 and (3) especially the high feeding and manurial values of some legu- 

 minous plants which are or can be grown in Connecticut. 



The new results liere reported consist mainly of observations on the growth of 

 eight species of legumes: horse bean ( Ficirt faha), soja bean (Soja hisinda), cow-pea 

 (Dolichos sinensis), vetch ( Vicia sativa), white lupine {Lujnnus alba), blue lupine 

 {Lupinus hirsutus), yellow lupine {Lupinus luteus), and clover {Tr if olium iJratense); 

 and one of grass, tall meadow fescue {Festuca elatior), with analyses of the products, 

 including roots and stubble. 



A study of the effects of nitrogenous fertilizers upon the quantity and composition 

 of the grass crop, similar to that began upon corn, already reported,* was com- 

 menced the present season. These experiments have, for the most part, been con- 

 ducted in the forage garden and upon the school farm, though a few have been on 

 farms in different parts of the State. It is planned to coutiuue this work, the present 

 bulletin being regarded merely as a report of progress. As the purpose of the 

 present bulletin is to give brief statements of results for use of fanners, the details 

 are reserved for publication in the next annual report of the station. 



The principal contents of the bulletin are a brief description of the 

 grass and forage garden of the station ; a list of seventy-one species of 

 plants grown in this garden in 1889-90; descriptions of five species of 

 promising grasses for trial in the State; reasons why legumes are 

 especially valuable for feeding and manures; descriptions of the prin- 

 cipal species of legumes grown at the station; a table giving the results 

 of analyses of the species of legumes and grass mentioned above, with 

 comparative data for corn, corn stover, timothy, hay, and timothy and 



* Connecticut Storrs Station, Reports, 1888, p. 72, and 1889, pp. 103 and 127. 



