217 



5 clays each. The silage aud corn fodder were fed ad libitum^ from 40 

 t<» 45 pounds of roots were fed per animal, the grain rations were dif- 

 ferent for each cow, and clover hay was fed with each of the coarse 

 fodders in xarying anionnts. Data as to the amount of each food con 

 sumed and the yield and composition of the milk are tabulated for each 

 cow, and summaries are given for the eight cows on each coarse fodder. 

 In the case of four of the cows the iiroduction of milk and of butter fat 

 was largest when roots were fed; two otheis gave the largest yield with 

 corn fodder, aud two with corn silage. About twice as nuich (-lover 

 hay was fed with the roots, however, as with either of the other coarse 

 fodders. It is obviously impossible to gain an idea of the real eft'ect of 

 the different coarse fodders. The financial side of the question is not 

 considered and the cost of the different feeding stuffs is not given. 



Treatment of fungous diseases, L. H. Pammel, B. Age. (pp. 

 31-71, plates 10, figs. 16). — General explanations of fungous diseases of 

 plants and their treatment, formulas for various copper solutions, 

 descriptions of spraying apparatus, and original and compiled notes on 

 the nature and treatment of apple rust {Foestelia pirata), pear leaf blight 

 {Entomosporiiim maculatum), plum rust {Puccinia pruni-spinosce)^ si>ot 

 diseases of currants {Septoria ribis and Cercospora angulata)^ spot dis- 

 ease of the cherry {Gylindrosporinm padi), apple scab {Fusicladiinu 

 dendriticum), strawberry leaf blight {S2)ha'rella fragaria;), potato rot 

 {PhytopMliora infestans), and clover rust (Uromyces trifolii). 



Apple rust. — Spraying with Bordeaux mixture and ammoniacal car- 

 bonate of coijper on two trees did not prevent the appearance of the 

 fungus in abundance. 



tipot diseases of currants. — Bordeaux mixture and ammoniacal carbon- 

 ate of copper sprayed on the Blue Naples and White Dutch currants, 

 largely prevented injury from spot diseases. 



S2)ot diseases of the cherry. — Ammoniacal carbonate of copper alone or 

 following Bordeaux mixture was successfully used for this disease in 

 several experiments. 



Glover rust. — This disease was first observed in the rowen of red 

 clover in August, 1890. " Later it was found quite abundant on the 

 campus and college farm. So severely did it attack some of the plants, 

 especially the stem and leaves, that in toucliing the plants the hands 

 became covered with brown spores." 



Weed pests, L. H. PAMikiEL, B. Agk. (pp. 72-75).— Brief notes on 

 ox-eye daisy {Chrysanthemum Leucanthemnm), hawkweed (Hieraciuw 

 'iiirantiacum), Canada thistle (Cnicus arvensis), horse nettle or sand 

 l)riar {Solanum carolinense), spiny nightvShade {ISolanum rostrafnm), 

 ■And (Unhler {G use Ufa /n/oin) with a view to putting Iowa farmers on 

 their guard against these pests, 



IVkeliminary report on the examination of some seeds, r. 

 II, Rolfs, B, S. (pp. 75-80, figs. 7). — An examination ()f the seeds of a 

 iininl>er of s]>ecies (»r clo\'ers and grasses purchased l»y the station^ 

 lU3;j«>_Xo. 4 2 



