358 



the greater after the corn, because the plants are not much injured by 

 frost. 



EFFECT OF VARIATIONS IN DATES OF SEEDING AND 

 HARVESTING. 



The injurious effects of late frosts on early vegetables and on 

 grains sown in the spring is generally annulled in part by a second 

 sowing, so that the crop reports for the year do not show the full 

 extent of the injury done to the plant by the climate. 



In a general comparison between the climate and the crops accu- 

 racy would require that we know the date of last planting, but in the 

 absence of this fundamental datum w^e are obliged to use the average 

 dates between which the planting is done in any given State, and 

 such dates are given in the following table and are assumed to refer 

 to the dates of planting the seed which actually brought forth the 

 subsequent harvest, whose yield per acre is given in the tables pub- 

 lished by the statistician of the Department of Agriculture. 



These tables are also necessary in order to compute the thermal 

 constants and to anticipate the dates of bloom and harvest. The 

 following tables, for 1882 and 1889, as published in the Annual 

 Reports of the Department of Agriculture (pp. 409 and 636, respec- 

 tively), give the dates of seeding for wheat: 



Date of seeding. 



Fro in- 



seeding. 



Date of seeding. 



From- 



Aver- 



age 

 date of 

 seeding. 



Connecticut 



New York 



New Jersey 



Pennsylvania .. 



Delaware 



Maryland 



Virginia 



North Carolina 

 South Carolina. 



Georgia 



Alabama 



Mississippi 



Louisiana 



Texas... 



Arkansas 



Tennessee 



West Virginia . 



Kentucky 



Ohio 



Michigan 



Indiana 



niinois 



Missouri.. 



Kansas 



California 



Oregon 



Sept. 1 

 Aug. 15 

 Aug. 28 

 Aug. 20 

 Sept. 20 

 Sept. 1 

 Aug. 20 

 Sept. 1 

 Oct. 1 

 Sept. 1 

 ....do... 

 ....do... 

 ....do... 

 ....do... 

 ....do... 

 Aug. 1 

 Aug. 20 

 Aug. 25 

 Aug. 1 

 Aug. 20 

 Aug. 15 

 Aug. 20 

 Aug. 15 

 Aug. 1 



Nov. 1 

 Oct. 30 

 Nov. 10 

 Oct. 20 

 Oct. 10 

 Dec. 1 

 Nov. 25 

 Jan. 10 

 Jan. 1 

 Jan. 10 

 Dec. 20 

 Dec. 1 

 Nov. 20 

 Mar. 15 

 Jan. 15 

 Dec. 15 

 Nov. 15 

 Dec. 20 

 Nov. 20 

 Nov. 15 

 ....do.. 

 Nov. 10 

 Dec. 1 

 Jan. 1 



Sept. 25 

 Sept. 16 

 Sept. 28 

 Sept. 20 

 Oct. 1 

 Oct. 13 

 Oct. 15 

 Oct. 29 

 Nov. 1 

 Nov. 2 

 Nov. 3 

 ...do... 

 Nov. 5 

 Nov. 7 

 Oct. 26 

 Oct. 15 

 Sept. 30 

 Oct. 7 

 Sept. 20 

 Sept. 17 

 Sept. 10 

 Sept. 20 

 Sept. 25 

 Sept. 23 



Sept. 1 

 Aug. 15 

 Aug. 25 

 Aug. 10 

 Sept. 15 

 Aug. 20 

 Sept. 5 

 Sept. 1 

 Oct. 1 

 Sept. 1 

 Sept. 15 

 ....do... 



Oct. 25 

 Oct. 15 

 Oct. 25 

 Oct. 30 

 Nov. 1 

 Nov. 20 

 Dec. 1 

 Dec. 15 

 Dec. 10 

 Dec. 25 

 Jan. 1 

 Dec. 30 



Sept. 25 

 Sept. 15 

 Sept. 25 

 Sept. 19 

 Oct. 10 

 Oct. 13 

 Oct. 19 

 Nov. 5 

 Nov. 13 

 Nov. 14 

 Nov. 7 

 Nov. 5 



Sept. 1 

 ...do... 

 ...do... 

 ...do... 

 ...do... 

 Aug. 25 

 Aug. 20 

 ...do... 

 Aug. 25 

 Aug. 15 

 ...do... 

 Sept. 1 

 Sept. 15 



Feb. 1 

 Jan. 10 

 Dec. 20 

 Nov. 15 

 Dec. 10 

 Nov. 15 

 Nov. 1 

 Nov. 20 

 Nov. 13 

 Dec. 1 

 ...-do... 

 May 1 

 Apr. 1 



Nov. 6 

 Nov. 1 

 Oct. 22 

 Oct. 2 

 Oct. 12 

 Sept. 24 

 Sept. 15 

 Kv- •■ 

 Bopt.23 

 Sopt.:.-^! 

 St'.pt 3* 

 D<M . 37 

 Nov. 25 



