230 



On Agricultural Chemistry. 



it falls, and the temperature during the period when the plant is 

 actively growing or forming seed. 



As the experiments to which I am about to refer were per- 

 formed during the seasons of 1844, b, and 6, I wish to make a 

 few observations upon the climate of each season, and to show 

 how the general condition of the crop was influenced by it. The 

 temperature and fall of rain I have taken from the tables 

 published by the Horticultural Society at Chiswick, from which 

 my farm is little more than 20 miles distant, consequently the 

 climate may be said to be nearly identical. 



Table 1. 



Number of days' Rain during 30 wks.and4 days. 



Inches of Rain during 30 weeks and 4 days. 



April . 

 May . 

 June . 



July . . . 

 August 

 September . 

 October 



1 1844 



1845 



1846 



April 

 May . 

 June . 



July . . . 

 August . 

 September 

 October . 



1844 



1845 



1846 



7 

 7 

 10 

 10 

 16 

 12 

 19 



15 

 21 

 8 

 21 

 21 

 11 

 13 



18 

 10 



2 

 16 

 17 



6 

 24 



0-33 

 0-26 



0- 97 



1- 94 



2- 00 

 1-27 

 4-19 



0-99 

 2'88 



0- 98 



2- 16 



3- 32 



1- 68 

 1-48 



3- 84 

 1-35 



0- 64 

 1*60 



4- 82 



1- 39 



5- 50 



8] 



110 



93 



10-96 



13-49 



19-14 



Mean Temperature during 30 weeks and 4 days. 



Mean Temperature above or below average. 



April . 

 May . 

 June . 



July . . . 

 August 

 September . 

 October 



1844 1845 



1846 



April. 

 May . 

 June . 



July . . . 

 August . 



1844 



1845 



1846 



5M 

 54-2 

 62-3 

 64-3 

 60-4 

 60-0 

 50-2 



48- 3 



49- 5 

 61'8 

 62-0 

 58-9 

 55-2 

 51-2 



47'0 

 55-7 

 66-3 



64- 7 



65- 2 

 62-5 

 52*7 



4 above 



1 below 



2 above 

 1 '6 above 

 2*2 below 



1*0 above 

 1-8 above 

 0-9 below 

 0-9 below 

 4'6 below 



Average 

 3 above 

 6 J above 

 2 above 

 2-7 above 





57*5 



55-2 



59-1 



The season of 1844 was remarkable for bad crops of hav, 

 clover, late-sown barley, and oats, very fine wheat with very short 

 straw, and average turnip crop. In 1845 there was abundance 

 of hay and clover, bad quality of wheat, abundance of straw, and 

 one of the largest crops of turnips ever known. In 1846 the 

 grass and first crops of clover were unusually abundant, wheat 

 was of very fine quality, straw moderate, turnips deficient. Of 

 course, there are plenty of exceptions to what I have stated, and 



