NOTES. ; 7 



try's Discourses on Agriculture, p. 34. Marshall is considered to be the most 

 correct writer we have on the subject of subsoil. 



120 Or " ferruginous schistus." In Ireland, this description of soil is call- 

 ed " lackleagh." It is there considered to be the most effectual mode of im- 

 provement, to break through the retentive stratum, by a plough of an immense 

 size and weight, called the miner., without a mould-board, drawn by eight oxen, 

 followed, in the furrow formed by a four-horse plough. This substance, once 

 severed, never re-unites. Communication from the Rev. TJiomas Radcliffe* 



121 Clydesdale Report, p. 9, and 32; Dumfriesshire Report, p. 18. 



122 Sir H. Davy's Lectures, p. 162. 



123 General Report of Scotland, vol. i. p. 61. 



124 Northamptonshire Report, p. 13. 



1 25 General Report of Scotland, vol. i. p. 60. 



126 Williams on Climate, p. 227. It has however, been asserted, that 

 though steeping accelerates germination, it produces weaker plants ; and that 

 the same end may be attained by early sowing, or putting the seed in with the 

 drills, by which it is properly covered, and moisture is secured. 



127 General Report of Scotland, vol. i. p. 60. 



128 General Report of Scotland, vol. v. p. 63 ; and Dr Paris's Notes on 

 the Soil of Cornwall, p. 6. 



129 Clydesdale Report, p. 32. This remark is not applicable to tropical 

 regions. 



130 Worcestershire Report, p. 4. This calculation does not apply to other 

 countries ; and in fact the degree of heat depends, not only upon latitude, 

 but upon the position of the land, whether horizontal, or lying to the south 

 or north ; also upon the angle at which the land is elevated, on either of these 

 directions. 



131 Mid- Lothian Report, p. 24. See also Northamptonshire Report, p. 8. 



132 Argyllshire Report, p. 8. 



1 33 General Report of Scotland, vol. iv. p. 1 30. 



134 North Riding Report, p. 4. Derbyshire Report, vol. ii. p. 114. 



135 East Riding Report, p. 3. 



136 Communication from the Rev. Thomas Radcliffe. This is an important 

 hint to persons residing in mountainous districts. 



137 See Aberdeenshire Report, p. 52 ; Ross-shire Report, p. 57 ; Mid- 

 Lothian Report, p. 23. 



138 Marshall's General View of the Agriculture of the Central Highlands 

 of Scotland, p. 13; Aberdeenshire Report, p. 52. See also Dr Home on 

 Vegetation. 



139 Kincardineshire Report, p. 17; Dumfriesshire, p. 13; Forfarshire, 

 p. 75 ; and Staffordshire, p. 10. 



140 The advantages of vicinity to water, shall be afterwards discussed. See 

 Part II. Sect. 8. 



141 Husbandry of Scotland, vol. ii. p. 132. 



142 Annals of Agriculture, vol. xxxix. p. 518. Herts Report, p. 29 ; Surrey 

 Report, p. 113; Middlesex Report, p. 98. 



143 Husbandry of Scotland, vol. i. p. 107. This is the practice in the 

 Lothians, where the culture of arable land is carried to much perfection. At 

 the same time, it is the quality of the soil that principally induces a preference 

 to tillage over grazing. 



144 Mcmoiresur les Besoins, et les Ressources de 1' Agriculture Franchise, 

 par M. le Comte Fran$ois de Neufchateau. A Paris, anno 1816. 



1 45 Husbandry of Scotland, vol. i. p. 203. 



146 General Report of Scotland, vol. iii. p. 268, where the subject of fuel 

 is treated of more fully. 



147 Aberdeenshire Report, p. 531. 



148 Wherever coal can be had, the consumption of wood diminishes. Essex 

 Report, vol. ii. p. 381 ; Suffolk Report, p. 204; Derbyshire Report, vol. iii. 



