210 Mr. Scoresby's experiments and observations on the 
GENERAL REMARKS. 
The results of the foregoing experiments were, in general, 
satisfactory, though there were some trifling anomalies, which 
will be noticed in their order. The chief points I had in view 
were tolerably well determined ; but the investigation is so 
far from being complete, that what has been done, as is often 
the case in such researches, opens a much wider field of en- 
quiry than I at first contemplated. I proceed, however, to 
state the chief results obtained, consisting of such deductions 
as I trust the experiments will be considered legitimately to 
warrant. 
1 . One principal object of enquiry in these experiments 
was, to prove the effect of a combination of rods of iron, on 
a plan previously arranged, for augmenting the magnetic 
power by percussion. The result was, in the main, perfectly 
agreeable to my expectations. For, by the employment of 
such a combination, which I have denominated the compound 
process , the magnetism developed was always more or less 
increased, but the proportion of augmentation was by no 
means regular, nor is the law by which it is governed very 
obvious. In experiment No. II, the maximum effect of the 
simple process was an attractive force capable of lifting 
between 186 and 24 6 grains ; whilst the compound process 
readily augmented the lifting power to 32 6 grains. And on 
repeating the trial, (Experiment III.) on the simple process, 
the wire obtained a lifting power of 246 grains, which the 
compound process increased to 345. But the advantage was 
the most obvious in experiment No. VIII, when a very short 
piece of wire was used. In this case, whilst the simple pro- 
