94 NATURAL SCIENCE [August 
In the table, results are shown of the experiments relating to 
work done in a gig pair, both on sliding and fixed seats. The 
author regrets that the stroke rate was not taken in more cases, it 
having been measured in only seven of the experiments. It is, 
however, not far from the truth to assume that the estimated rates 
in other cases are not in error more than one stroke a minute.} 
‘The trials involved in the table have all been short, ranging from 
one to ten minutes, and speaking generally a similar rate a oe 
with a gradual fall in power, could have been continued for some 
twenty minutes, while, at high pressure, exhaustion would ensue 
under similar conditions in less than ten minutes. 
ROWING IN GIG-PAIR 
Average time between easies—3 min. 
Average stroke-rate—2 2. 
1 2 3 4 | 5) 6 vey fas 
Stroke Pull. Mean. | 
Oarsman |length in | Ft.-lbs. | |) EOS 
feet. per str. Max. | Mean. Max. power. 
I. Shidinjg Seat. | | 
A 4-9 38i))_ Oi Aine 78 (0-254 
B 4:9).\\) 4180/5 115 ple 86 ‘74 266 
6 52 hie den 28 oye 86 1101380 
D AOL | DEV it «80 54 GOP })e78 
E 
F 
[K 
| 
Prilcen| w89 Olek 10d: ap 47 ‘TA 272 
4:6 240 hot Ml alaare 66 196 
At) SAGs) (GIG | Ai9 79 331] 
Mean 4:9 396 AOS it xO 13 "259 
IL. Fixeld Seat. | 
4:5 370 12, 2 65 “DAT 
G 
H dQ: "| S386S3 198 | 85 65 224 
I 49 | $4351) 122 82 67 O97 
F 5 So 5 70 56 208 
Mean | 43 | 340 | 126 | 80 63 S/226n, 
The table indicates that Man Power in rowing is about 4 H.P. 
and varies with individuals and effort between -2 and ‘4 H.P. 
1 With reference to stroke rate, it is worthy of note that the usual custom of counting 
strokes, in which the number of strokes in the water is taken, makes an error of more 
than half a stroke, by omitting one swing forward. Thus if strokes are counted for 
4 min. the deduced rate is too high by 2 per minute. 
