236 FIELDS, FACTORIES AND WORKSHOPS. 



heating apparatus, is 105. per running foot of greenhouse, 

 which makes .150 for one-eighth of an acre under glass, or 

 a little less than yd. per glass-roofed square foot. 



The crops are : potatoes, four cabots per perch, i.e., three- 

 quarters of a ton of early potatoes from the greenhouse ; and 

 tomatoes, in the culture of which Mr. B. attains extraordinary 

 results. He puts in only 1000 plants, thus giving to his plants 

 more room than is usually given; and he cultivates a corru- 

 gated variety which gives very heavy crops but does not fetch 

 the same prices as the smooth varieties. In 1896 his crop 

 was four tons of tomatoes, and so it would have been in 

 1897 each plant giving an average of twenty pounds of fruit, 

 while the usual crop is from eight to twelve pounds per 

 plant. 



The total crop was thus four and three-quarter tons of vege- 

 tables, to which the catch crops must be added thus corre- 

 sponding to 85,000 Ib. per acre (over 90,000 Ib. with the catch 

 crops). I again omit the money returns, and only mention 

 that the expenditure for fuel and manure was about ^10 a 

 year, and that the Jersey average is three men, each working 

 fifty-five hours a week (ten hours a day), for each acre under 

 glass. 



K. PLANTED WHEAT. 

 The Rothamsted Challenge. 



Sir A. Cotton delivered, in 1893, before the Balloon Society, 

 a lecture on agriculture, in which lecture he warmly advocated 

 deep cultivation and planting the seeds of wheat wide apart. 

 He published it later on as a pamphlet (Lecture on Agri- 

 culture, 2nd edition, with Appendix. Dorking, 1893). He 

 obtained, for the best of his sort of wheat, an average of 

 " fifty-five ears per plant, with three oz. of grain of fair 

 quality perhaps sixty-three Ibs. per bushel" (p. 10). This 

 corresponded to ninety bushels per acre that is, his result 

 was very similar to those obtained at the Tomblaine and 

 Capelle agricultural stations by Grandeau and F. Dessprez, 

 whose work seems not to be known to Sir A. Cotton. True, 



