690 



Eeport of Entomologist, M. H. Beckwith (pp. 110-129, figs. Gi.— 

 A reprint of Bulletin Xo. 12 of the station (see Experiment Station 

 Kecord, vol. ii, p. 718). 



Eeport of Chemist, C. L. Benny, :m. A. (pp. 129-154). 



Sour-cream 2)>'ocrss, .sicfct-crcam process, <(nd butter extractor (pp. 129- 

 149). — A reprint of the experiments on these subjects repented in Bul- 

 letin No. 9 of the station (see Experiment Station Kecord, vol. in. p. 

 002). 



MisceUaneoun (pp. 149-154). — liricf mention is made of examinati(/ns 

 of grapes for copper ''to test whether the application of a certain cop- 

 per mixture to the vines atlects the fruit or makes it unsafe for food.'' A 

 sample of fruit covered ^vith spots of copper giving it " a distinctly and 

 disagreeably metallic taste," was reported to have 47 parts (»f copper per 

 million, or less than has been reported in some articles of food eonsidt'red 

 healthy, as beef liver. " In other woids, the tongue is a suHicii'nt safe 

 guanl against eating fruit that eontains this copjier salt in poisonous 

 quantities."' 



To determine the amount of copper absorbed by potatoes when grow- 

 ing in a soil containing it. analyses were made of the skin and i)ulp of 

 tubers from an uiikii(»\vn sourci' and those grown in a soil rich in coi>p«r. 

 The potatoes grown in soil rich in coi»iier contained l.'.VA parts of copper 

 per million in the pidp an«l 4(> jtarts in the skin; and those of unknown 

 origin 1 .2<i parts in t he i»ulp and only lO in the skin. " It is interesting 

 to note that while the tul»ers fnnii cojiper soil held two and one half 

 times as much of the metal intheiiiid as the other sami»le, the inner 

 part held pract ically the same amount in either case." Analyses are 

 given of a tartar emetic, slug shot, odorless i»hosphate, jtarts of i-orn 

 stover, and scarlet clover: ami the composition ol the latter is compared 

 with that of wheat bran, as follows: 



Scarlet clover compared uilh wheat bran. 



Moisture 



Crudo asli 



Crude cflluloHe 



OucU' fat 



Cnule protein 



Kitrogcn-free extract 



AveraRO 

 whe.tt 

 bran. 



Per cent. 



10.70 

 6. i>0 

 8.60 

 4.0U 

 1 4. S;l 

 5:>. 00 



100.00 



The clover hay contained 2.9 per cent of pota.sh and 0.58 per cent of 

 phosi)horic acid. 



Befort of .AIeteorologist, G. a. IIartei{, ^l. A. (pp. 154-170).— 

 Tabulated monthly summaries of ob.servations in 1.S90 at Newark, Mid- 

 dletown, Dover, Millonl, Seal'ord, ami Mill.sbonmgh, Delaware. At the 

 station the mean temperature for the year was 53.7^ F., the total rain- 

 tall 44. 1() inches, the number of days on which 0.01 inch or more of 

 rain fell 114. 



