584 Report of the Trials of Ploughs, Harrotcs, S^-c, at Hull. 
Awards in Classes 17, 18, and 19. 
Class 17. — Light Harroivs. 
2801.— First Prize of 10/. to William Asliton, of Boston Row, 
Horncastle. 
1640. — Second Prize of 5/. to William Hunt, of Leicester. 
Class 18. — Heavy Harrows. 
2803. — First Prize of 10/. to William Ashton, of Boston Row, 
Horncastle. 
2944. — Second Prize of 5/. to Benjamin Reid and Co., of Bon 
Accord Works, Aberdeen. 
Class 19. — Chisel Harrows. 
2804. — First Prize of 10/. to William Ashton, of Boston Row, 
Horncastle. 
4358. — Second Prize of 5/. to Messrs. Sharman and Lodbury, 
of Melton Mowbray. 
468. — Highly commended, Charles Clay, Wakefield. 
Class 20. — For the best Chain Harrow. 
The entries in this class were not numerous. Messrs. 
Cambridge and Parham, of Bristol, maintained their position 
in reference to these useful implements, which I believe were 
first introduced by the late Mr. Cambridge, or greatly improved 
by him. At the present day there are two descriptions of chain 
harrows, viz., the chain harrow proper, in which the operating 
parts are the under surfaces of the links only, or aided by disc 
wheels between the links ; and a combination of tine and chain, 
which is found more valuable in reducing rough surfaces, and 
scratching over hide-bound grass land, but is not so well adapted 
for the same business as the old brush harrow, inasmuch as the 
tines collect the vegetable matter, and are not easily cleaned ; 
both are admirable lor their particular work. 
The harrow (No. 736) with which Mcsars. Cambridge and Parham gained 
the prize is an improvement on the original chain harrow in the following 
respects. The earlier implements were made with solid stretchers, which 
prevented the chains following inequalities of surface ; consequently portions 
of the work where the ground was unlevel would be missed. Mr. W. C. 
Cambridge invented a "jointed" or "flexible" spreader, shown at a o « in 
the jdan. Fig. 86. The harrow is made in three parts, so connected by the 
said stretchers that no 2 rows of links can follow in the same tracli:, and no 
inch of surface is left unworked. This appears to be a point of great merit. 
The dividing hooks which connect the top jiart of the harrow to the middle 
portion are of great service, inasmuch as the harrow can be reduced in size by 
removing the top part altogether, and bringing back tlie whipple-tree to tlie 
spreader ; and as the tail jiart being more constantly on the ground wears out 
first this can be renewed and joined on without a blacksmitli's assistance. 
The harrow is 8 feet 6 inches long by 7 feet 6 inches wide. The links are of 
