212 Mr H. F. Baxter on Muscular Power. 
is no doubt accompanied with chemical changes which 
take place in its tissue, as in the muscles; but whether heat 
and electricity are developed, as in muscles during muscular 
action, is extremely problematical. 
I have alluded in a former part of the paper to the fact 
that, during muscular action the nutrition of the muscle is 
increased, and consequently the muscular power is main- 
tained, if not increased; here we have apparently a creation 
of force during work instead of exhaustion. If we bear in 
mind that it is during nutrition that the muscular force is 
generated and maintained, and that tme must be taken 
into account in considering these phenomena, there is, not- 
withstanding the apparent creation of power, ultimately an 
exhaustion ; and consequently these facts go far to establish 
the correctness of the principle of the Conservation of 
Force; at the same time show the extreme beauty of adap- 
tation and contrivance in the animal machine when com- 
paring it with the admirable contrivances formed and 
designed by human skill. 
Collection of the Popular Weather Prognostics of Scotland. 
By Arruur Mircnery, A.M., M.D., Member of Council 
of the Scottish Meteorological Society, &.* 
1. Minute of Council of the Scottish Meteorological Society, 
July 1863. 
The Council had laid before them by the Marquis of 
Tweeddale, a “ Collection of the Popular Weather Prog- 
nostics of Scotland,” drawn up by Dr Arthur Mitchell, 
M.D., accompanied by a letter from the author, dated 15th 
December, 1862, and addressed to his Lordship. 
The Marquis repeated to the Council, what he had stated 
to the general meeting of the Society, held on 24th ultimo, 
that he considered it would be of use to publish these prog- — 
nostics, and also very important to have them explained 
and tested on scientific principles. As the general meeting 
* In connection with the paper the following minute and letter were 
transmitted. 
