“ NEW FORCE ” OF M. J. THORE. 
469 
distance through a telescope, and 1 find that the hot bottle is able to effect rotation as 
well as the observer. 
Among the curious observations mentioned by M. Thore is this :—Placing the 
pillar in front of the cylinder (between it and the observer), if the pillar is held with 
the right hand the movement is clockwise, and if the left hand is used the rotation is 
counter-clockwise. The right hand is stronger in its effects than the left hand in the 
proportion of 2 to 1. 
M. Thore has given, in addition, a large number of curious and interesting observa¬ 
tions, using two, three, and more movable cylinders, and recording their movements 
under a great variety of circumstances. I admit I do not see at once how all these 
are to be explained on the molecular bombardment theory. But this theory has not 
yet explained all the anomalous results I have recorded in my papers on “ Repulsion 
resulting from Radiation,” although I believe it capable of doing so ; and I therefore 
think that it is not necessary to call upon a new force to explain any of M. Thore’s 
results which radiation does not yet seem able to account for. 
