466 Royal Society :— 
late it once for all for each degree of the Centigrade thermometer from 
1° to 150°. As it is always easy so to manipulate as to prevent the 
value of T falling between the whole numbers, the Table proved a 
most valuable means of saving time ; the author has therefore appended 
it to his paper in the hope of its proving equally useful to other work- 
ing chemists. 
*‘On the Thermal Effects of Fluids in Motion—Temperature of 
Bodies moving in Air.” By J. P. Joule, LL.D., F.R.S., and Pro- 
fessor W. Thomson, LL.D., F.R.S. 
An abstract of a great part of the present paper has appeared in 
the Phil. Mag. vol. xv. p. 477. To the experiments then adduced 
a large number have since been added, which have been made by 
whirling thermometers and thermo-electric junctions in the air. The 
result shows that at high velocities the thermal effect is proportional 
to the square of the velocity, the rise of temperature of the whirled 
body being evidently that due to the communication of the velocity 
to a constantly renewed film of air. With very small velocities of 
bodies of large surface, the thermal effect was very greatly imcreased 
by that kind of fluid friction the effect of which on the motion of 
pendulums has been investigated by Professor Stokes. 
On the Distribution of Nerves to the Elementary Fibres of 
Striped Muscle.” By Lional 8. Beale, M.B., F.R.S. 
On the Effects produced by Freezing on the Physiological Pro- 
perties of Muscles.” By Michael Foster, B.A., M.D. Lond. 
* On the alleged Sugar-forming Function of the Liver.” By 
Frederick W. Pavy, M.D. 
«A new. Ozone-box and Test-slips.” By E. J. Lowe, Esq., 
F.R.A.S., F.L.S. &c. 
The ordinary form of Ozone-box being very cumbersome, the pre- 
sent one has been contrived to supersede it*. The box is simple in 
construction, small in size, and cylindrical in form; the chamber in 
which the ¢est-slips are hung is perfectly dark, and at the same time 
there is a constant current of air circulating through it, no matter 
from what quarter of the compass the wind is blowing. The air 
either passes in at the lower portion of the box and travels round a 
circular chamber twice, until it reaches the centre (where the test- 
slips are hung) and then out again at the upper portion of the box 
in the same circular manner, or in at the top and out again at the 
bottom of the box. 
Fig. 1 represents a section of the upper portion of the box, showing 
the manner in which the air enters and moves along to the centre 
chamber (where the test-slip is hung at A), and figure 2 represents 
a section of the lower half of the box where the air circulates in the 
opposite direction, leaving the box on the side opposite to that on 
which it had entered. 
* A specimen of the instrument was forwarded with the paper. 
