i8o3» An fivers to juries o?i Vegjtation. 49 



convinced it would be very beneficial in this, and all cold climates. 

 The canfe of the failine of our fruir-crops is more generally ow- 

 ing to bad weather coming: on the hack of good in the fpring-timc, 

 than any thing elfc ; and if we could keep back vegetation by the 

 above proccfs, or any other, to a better and more fettled feafon, 

 it would be an important improvement. 



12. Yes; and everv plant will bend to the light, whatever 

 angle of the horizon it is admitted from. It the rays of the fun 

 are admitted, it will be the more obedient. 



13. Yes; with refped to trees placed againft a wall. With 

 refped to trees (landing freely expofed, I do not think they are. 



14. I cannot pofitively fiiy of all plants ; though, judging by 

 analogy, I believe mofh do grow more in the night tlian in the day, 

 in fummer particularly. 1 have found, that vines in a hot-houfe 

 grow mofl in the night, from about the 1 ft of April to September. 



15. Yes; but by no means fo luxuriantly as if prottdted ; nor 

 will the plants continue to llourifli as well for a feries of years. 

 Indeed, neither could reafonably be expcded conlidering that, in 

 this cafe, one part of the plai't would be placed, as it were, in 

 Greenland, and the other in the Indies. 



V. Concerning Mannres, or dead organised Matter, 



Anf. to Quef I. By correfting tenacity and porolity in the foil, 

 exciting itb fermentation, communicating nutritive matter, and af- 

 fording nonrilhment to the roots of plants, manures greatly pro- 

 mote vegetation and their perfection. 



2. Firjl, Vegetable earth of decayed tree-leaves, and of de- 

 cayed vegetables, of dilTerent kinds, mixed together, I have ever 

 found mild, nutritive, and of the moft falutary effect : nor have 

 I ever found that I had applied too much. Secondly, Stable- 

 dung, on all heavy loams and cold foils, not too much ferment- 

 ed, I have found of good, and on light dry foils, unlefs pretty 

 much fermented, of bad eflecl. Thirdly, Cow and hog-dung, 

 on light dry foils, I have found to be falutary, and the contrary 

 on cold and wet ones. Fourthly, Sheep and deers' dung, applied 

 in moderate quantity, has a good effedt on all loams, efpecially 

 thofe that are tenacious and wet. Fi'thly, Pigeon-dun t,% at 

 lead a year old, mixed in equal quantity with vegetable mould, I 

 have found of the moft happy effect, when difcreetly applied to 

 heavy land, and being buried only tv/o or three inches. Sixthly, 

 I have found vvhin and fern afhes, mixed v;ith a little ^'ood earth, 



an excellent top-drefiinu to grafs-iand of a ftiff wet nature 



Seve?ithly, A compoft of coal allies, foot, pigeon-dung, and fea- 

 gravel, wherein was a coniiderablc quantity of IhcUs; I have found 



of 



