of String Binders at Derhij. 
297 
Table I. — Results of Teials of Combined Reapers and Sheaf-Binders on 
Oats at Derby, August 9, 1881. 
Name of Exhibitob. 
McCormick. 
Samuelson. 
Johnston 
Harvester. 
AVootl. 
Howard. 
Oats 
Oats 
Oats 
Oats 
Oats 
Condition of Crop .. 
fHeavy. Over ripe. Partly tangled and leaning. Straw 
i long and diflScult to cut. 
Weislit of Crop per Acre 
10,723 lbs. 
11,008 lbs. 
10,592 lbs. 
10,841 lbs. 
10,205 lbs. 
2 acres 
2 acres 
2 acres 
2 acres 
2 acres 
Nett time cutting . . 
1 hr. 42 m. 
Ihr. 18 m. 
0h.43m.40s. 
0h.51m.l9s. 
Ihr. 34m. 
4 ft. &| in. 
4 ft. 6^ in. 
4 ft. 8 in. 
4 ft. 10 in. 
No. of Sheaves per acre . . 
879 
754 
728 
586 
1173 
13i lbs. 
17 lbs. 
18 lbs. 
2U lbs. 
10 lbs. 
Weight of 
Min. . 
9 „ 
10^ „ 
12 „ 
13 „ 
8 „ 
Sheaves 
Mean of Total No.'l 
of Sheaves . . / 
12-2 „ 
14-6 „ 
14-55 „ 
18-5 „ 
8-7 „ 
29i ins. 
32 ins. 
34J ins. 
333 ins. 
33J ins. 
Girth of 
Min. . . 
28 „ 
27^ „ 
30 „ 
29i „ 
23 „ 
Sheaves 
Mean of Total No.| 
of Sheaves . . / 
28 "6 
30-65 
31-15 „ 
27-8 
Number of Sheaves untied . . 
17* 
16t 
50§ 
5611 
Nature of string used 
AVeight of string used per acre 
Manilla 
Hemp ■ 
Manilla 
Manilla 
Hemp 
31bs.l-68oz. 
21b.ll 45oz. 
2 lbs. 15 oz. 
2 lbs. 7 oz. 
4 lbs. 
Cost of string used, at S^rf. per lb. 
2s. 2id. 
Is. lid. 
2s. Id. 
Is. 8f d 
2s. \M. 
Breaking strain of 1 knot up 
197 
95 
122 
95 
90 
string band . . / 
knot down 
245 
130 
242 
186 
250 
Mean breaking strain 
85 
of wire bands as 
knot up 
per Bristol Expe- 
knot down 
132 
riments 
Breaking strain of 
straw bands as per 
knot up 
217 
Bristol 
Experi- 
knot down 
275 
Eemarks. 
* McCormick. — Very little assistance to delivery. 
-j- Samuelson. — In addition to tlie sheaves left untied, machine choked twice and had to 
be cleared, and sheaves constantly assisted by attendant. 
X Johnston Harvester. — The number of untied sheaves smaU, but attendant was con- 
stantly occupied in assisting deliveries. 
§ Wood. — Sheaves hung together and dragged, but very little assistance given. 
II Howard. — String broke 25 times. 
The weight of crops was calculated by the number of sheaves 
made by each machine multiplied by the mean weight. This 
must be regarded as an approximation rather than the actual 
weight, as the whole of the sheaves were not weighed. It will 
be noticed that the sheaves made by McCormick's machine 
were more uniform than any, except Howard's, which were too 
small. Another point of considerable importance in a damp 
climate is the relative size of the sheaves. Wood's sheaves 
were more than half as heavy again as McCormick's and con- 
