295 



a hot kerosene emulsion prepared in (lie following proportions: kero- 

 sene 1 pint, whale-oil soap one-fourth pound, water 2 quarts. The 

 water and soap Avere heated together and then the oil was added. 



The mixture was thoroughly churned with a force pump and 

 diluted with 5 gallons of hot water before application. The results 

 not being entirely satisfactory, lye water (1 pound of concentrated 

 lye to 3 gallons of water) was used with entire success. 



Corn worm (ITkltotiiis armigera), F. L. AVashburn, B. A. (pp. 

 7-9). — An illustrated account of this insect, with suggestions as to 

 remedies. 



Insec'ttcides and spraying machines, F. L. Washburn, B. A. (pp. 

 10-2-1), (illustrated). — This contains explanations of a number of 

 insecticides and general directions for their use, together with de- 

 scriptions of various kinds of spraying apparatus. 



Plants poisonous to stock, P. H. Irish, Ph. D. (pp. 25, 26). — A 

 brief preliminary account of an experiment in feeding two steers 

 with plants popularly supposed to bo poisonous. 



PENXS Yli VANl A . 



The Pennsylvania State College Agricultural Experiment Station. 



lJ('l>ai'tiiiciit of the PcDiixjilnniia ,Statc Collcije. 

 Locatiou. State College, Centre County. Director, H. P. Armsby, Ph. D. 



BULLETIN No. 8, .JULY, ISSO. 

 SySTEIMATIC testing or new varieties GERMINATION TESTS, G. C. 



BuTz. M. S. (pp. 3-T). — The conditions on which tests of new vari- 

 eties will be made by the Station are stated, being those agreed upon 

 b}'^ the station horticulturists in convention at Columbus, Ohio, June, 

 1889. A list of the varieties of small fruits growing at the Station 

 is given. 



'" Germination tests have l)een made this yeiw with vegetable seed 

 from the same packages as those used last year, in order to find to 

 what extent they lun'e deteriorated by being held over one year. 

 There is too great a decrease in the percentage of good seed in the 

 case of lettuce and tomatoes, for these seeds, if pure, should show 

 about the same germinative power for about five years at least." 



Germination tests of varieties of corn, oats, barley, forage plants, 

 mangel-wurzels, ruta-bagas, and beets are also reported. Tests of a 

 number of varieties of corn in the field compared with those in the 

 laboratory showed that while the per cent of seeds which germinated 

 in the field was quite uniformly smaller, the variations between dif- 

 ferent varieties were much the same as those shown by the germi- 

 nating apparatus. 



