Aug. 1910.] The Common Mole. 35 



Treatment of Seed Corn with Deterrents and Poisons. 

 Germination Table. 



(Average germination of the ten varieties of check or untreated corn in this test 

 about 95 per cent.) 



No. of 



Substance used. Treatment. grains Germi- 



tested. nation. 



Kerosene Corn surface-coated just before 



planting 600 74 % 



Coal tar 1 tablespoonful to peck. Planted 



at once 500 92 



Coal tar 1 tablespoonful to peck. Dried 



before planting 1,100 95 



Zenoleum Corn surface-coated just before 



planting 400 93 



Zenoleum Corn surface-coated and dried be- 

 fore planting 1,000 93 



Crow repellent Corn surface-coated just before 



planting 200 94 



Crow repellent Corn surface-coated and dried be- 

 fore planting 800 94 



Eed lead Corn surface-coated with paste in 



water 500 96 



Tobacco Decoction 1% oz. to 1 qt. water. 



Soak 36 hrs.; dry 900 93 



Gopher poison ... Corn surface-coated just before 



planting 500 92 



Gopher poison Corn surface-coated and dried be- 

 fore planting 1,000 96 



Strychnia sulphate ... % oz. to 1 qt. hot water; corn 



soaked 48 hrs.; dried 1,000 93 



Water Corn soaked 48 hrs.; dried before 



planting 1,000 93 



Arsenic Corn wet in very dilute mucilage ; 



powdered with arsenic 100 82 



Corrosive sublimate . . . Corn soaked in 1% solution for 



Ihr.; dried ._. 50 14 



Spirits of camphor. . . . Corn soaked in spirits for 24 hrs.; 



dried 100 00 



Pine tar Corn surface-coated ; dried before 



planting 100 92 



Crude petroleum Corn surface-coated just before 



planting 100 18 



Fish oil Corn surface-coated just before 



planting 100 54 



Crude carbolic acid. ... Corn surface-coated just before 



planting 100 44 



Copperas 1 oz. to one gallon of water; corn 



soaked 24 hrs. ; dried 100 79 



MOLES FOLLOWING THE LISTER FURROW. In connection 

 with the report on treating seed corn it may be well to give 

 here the results of some observations on the mole's alleged 

 habit of following in the bottom of the listed furrow. There 

 is no doubt but that the little animal is guilty, as charged, of 

 following a course by preference along the straight trail of 

 freshly loosened earth made by the drill-shoe. That he is 

 seeking out the seed corn is only a matter of inference from 



