VOLUMES ONE TO TWENTY-FIVE. 



35 



Clay, on the improvement of cold, heavy 

 soils by the application of burnt clay, 

 by C. Randell, v. 113 ; expenses of, 

 117. 



, burnt, effect on wheat crop (P. 



Pusey), vi. 177. 



, on clay-burning, by C. Poppy, vii. 



142. 



, on burning clay for manure, by W. 



Long, vii. 245 ; sketch of the kilns, 247. 



, on burning clay, by J. J. Mechi, vii. 



297 ; subsequent manuring effects of, 

 xiv. 225. 



, on biu-ning land for manure, by T. 



Eowlandson, viii. 46 ; the common dif- 

 ficulties of burning stiff soils, 49 ; burn- 

 ing in clamps, 51 ; cost of, 56. 



, on burning land for manure, by J. 



Pierson, viii. 77; the Suffolk mode, 

 ib ; report of a Suffolk farmers' club on, 

 79. 



in Suffolk, described by H. Rayn- 



bird, viii. 317. 



■ , on the theory of, by J. T. Way, xi. 



377. 



, P. Pusey on, xi. 407. 



, on the causes of the efHcacy of, by 



Dr. A. Voelcker, xii. 496 ; mechanical 

 effects, 498; absorption of ammonia, 

 500; chemical effects from varied de- 

 grees of heat, analyses, 502 ; potash 

 and soda made soluble, silicates of lime 

 formed, 504 ; use of lime, 508 ; analysis 

 of specimens of clays, 502, 505, 507; 

 of plastic clay, 506 ; clays devoid of 

 potash unfit for burning, 509 ; ill effects 

 of over burning, 510 ; why burnt clays 

 especially benefit root-crops, ib. 



, its use in the Weald of Sussex, xix. 



101. 



, burnt, its action as manure ex- 

 plained (Voelcker), xii. 496 ; xvii. 56. 



, on the burning of clay land (C. 



RandeU), xxiv. 540 ; permanence of its 

 effect, ib. ; crops and management, 

 ib. ; faggots better than coal for land 

 burning, 541 ; clay farms after burning 

 better adapted for sheep, ib. ; propor- 

 tion of arable land to be maintained, 

 ib. ; bare fallows condemned, ib. ; 

 scheme for managing a farm to carry 

 100 breeding ewes, 542 ; rotation of 

 crops, 543 ; management and food of 

 sheep, ib. 



farm, on the cultivation of a, ii. 262. 



See " Clay soils." 



Claying, Mr. W. Linton's experience in, 

 at Sherriff Hiuton, near York, ii. 67. 

 See " Soils." 



peat soils in Lincolnshire (Morton), 



ii. 407 ; (Pusey), iv. 297. 



CLAYrNG moorland, by S. Solly, iii. 427. 

 in Norfolk, described bv B. Almaek, 



V. 309; in the fens, 311, 313. 

 of the fens in Cambridgeshire, de- 

 scribed by S. Jonas, vii. 71. 

 in Suffolk, described by H. Raynbird, 



viii. 313. 

 in the S.W. of Hampshire, and the 



S.E. of Dorsetshire, xvi. 131. 

 Clay-slate rocks, analysis of, xiii. 534. 

 Clay soils, on furrow-draining tenacious 



clay soils, by R. Beart, ii. 100. 

 , on the cultivation of a cold clay 



farm, by Rev. G. T. Holcombe, ii. 262. 

 , on the rotation of crops on heavy 



lands, by W. Stace, iv. 169. 

 , on a new and successful rotation of 



crops for heavy clays, by J. S. Nowl- 



son, iv. 409; on di-aining, by R. Beart, 



411. 



, their origin, by Dr. Fownes, iv. 499. 



, the heavy clay soils of Essex, by R. 



Baker, v. 33 ; Dengy hundred, ih. 

 , on the improvement of cold and 



heavy soils by the application of burnt 



claj', by C. Randell, v. 113. See "Clay, 



burnt." 

 , eftuct of burnt clay on a crop of 



wheat growing on a heavy clay soil, by 



P. Pusey, vi. 477. 

 of the N.R. of Yorkshire (Milburn), 



ix. 511. 

 , their influence upon the tempera- 



tru-e of the atmosphere (Whitley), xi. 



10. 

 , on their power to retain manures, 



by H. S. Thompson, xi. 72. 

 , on the mischief arising from drain- 

 ing certain clay soils too deeply, by 



W. B. Webster, xi. 311. 

 , on their absorption of ammonia, 



&c., by J. T. Way, xi. 317. 

 , analysis of, by Dr. Voelcker, xii. 



502, 505-507 ; those which are fit and 



.unfit for burning, 509. 

 , stifl", medium, light, soft, and strong, 



xiii. 540. 

 , of the new marl and new red sand- 

 stone in Derbysliire (Rowley), xiv. 58. 



of Dorsetshire (Rviegg), xv. 417. 



, fertility or barreimess of, by J. 



Coleman, xvi. 173, 174; analysis of a 



soil, 1 93. 



of Buckinghamshire (Read), xvi. 



272, 280. 



are subject to the fewest weeds 



(Buckmanj, xvi. 368. 



walls, mode of preparing clay for 



walls of cottages (C. Hill), iv. 359. 



, those of Suffolk described by H. 



Raynbird, viii. 329. 



c 2 



