376 PROCEEDINGS OF THE INDIANA ACADEMY OF SCIENCE. 



TABLE 3. 



Number of weed seeds calculated per acre. 



Reported by 



Site or kind of 

 soil 



No. of seeds 

 per acre 



Remarks 



Exp. Station, Geneva 



New York 



Prentiss 



Prentiss 



Prentiss 



Prenti.ss 



Prentiss 



Prentiss 



Arthur 



Arthur 



Arthur 



Artliur 



Arthur 



Artliur 



Arthur 



Arthur 



Dept. of Agric, Winipot; 

 Canada 



Hitclicock and Clothier. 



Hitchcock and Clothier. 



Pawcett 



Fawcett 



Bazhanov 



Bazhanov 



Pipal 



Pipal 



Pipal 



Pipal 



Pipal 



Pipal 



Pipal 



Garden 



Overflow land 



Garden 



Compost 



Potting .soil 



Muck 



Plowed sod 



Plowed pasture 



Cultivated field 



Cultivated field 



Plowed meadow 



Cultivated field 



Neglected field 



Cultivated field 



Neglected field 



Garden 



Poor fallow frround . . . 



Poor fallow ground . . . 



Garden well tended . . 

 Garden poorly tended 

 Cultivated field 



Cultivated field 



Poorly tended field . . . 



Poorly tended field . . . 



Well tended field 



Permanent pasture. . . 



Poorly tcmded garden. 



Abandoned orchard . . 



Poorly tended field . . . 



,507,360 

 ,000,000 

 ,000 .000 

 ,000,000 

 ,000,000 

 ,000,000 

 175,000 

 176,520 



81 ,900 



241 ,360 



769,040 



,876,840 



,727,040 



,011 ,280 



,270,440 



1 ,300,000 



32,791 ,097 



61 ,702,740 



8,117,760 

 30,061 ,440 

 13 ,760,000 



64,7.30,000 



12,458,160 



11 ,020,680 



5,488,560 



958,320 



23,435,280 



17,554,680 



17,075,520 



Picked in June. 



Total depth of soil 

 layer not reported. 



Growth of current 



season. 

 Growth of current 



season. 

 Growth of current 



season. 

 Growth of current 



season. 

 Total layer of soil 3 



inches deep. 

 Total layer of soil 3 



inches deep. 

 Total layer of soil 1 }4 



inches deep. 

 Total layer of soil 1 J^ 



inches deep. 



Current season's 



growth. 

 Average of five year's 



(current growth. 

 Average of five year's 



current growth. 

 Picked in .lune. 

 Picked in June. 

 Total layer of soil two 



inches deep. 

 Total layer of soil 



eight inches deep. 

 Total layer of soil six 



inches deep. 

 Total layer of soil six 



inches deep. 

 Total layer of soil six 



inches deep. 

 Total layer of soil six 



inches deep. 

 Total layer of soil six 



inches deep. 

 Total layer of soil six 



inches deep. 

 Total layer of soil 



twelve inches deep. 



