Intelligence and Miscellaneous Articles. 



405 



the nature, between the vital powers and the physical functions of 

 this organ ; for, like all vital organization, the power is exhausted by 

 repeated efforts. 



" An Account of Experiments with a Water Battery." By H. 

 M. Noad, Esq., Memb. Elect. Soc. 



The water battery employed by the author of this paper consisted 

 of 500 pairs, and produced the effects which are known to bear so 

 close an analogy with those from the electrical machine. Among 

 the results, the deposition of carbon, when the electrodes were 

 placed in the flame of a candle, was very characteristic of the pe- 

 culiar action under these circumstances. The nature of the deposit 

 was first noticed by M. Gassiot. 



The Secretary then laid before the Society Mr.Weekes's Monthly 

 Register of the electrical condition of the atmosphere for September. 



LXI. Intelligence and Miscellaneous Articles. 



NOTICE OF BEARD'S PATENT FOR IMPROVEMENTS IN APPA- 

 RATUS FOR OBTAINING LIKENESSES AND REPRESENTATIONS 

 OF NATURE, &C. 



THE drawing shows various views of the apparatus, the nature of 

 which is written on the drawing, and the same parts are referred 

 to by the same letters of reference, a is a rectangular box, inside of 

 which and at the end thereof, there is fixed a concave reflector, 

 which may be of glass or metal, as is well understood in making re- 

 flectors for telescopes. This reflector is placed with the reflecting 

 surface facing the other end of the box, which has an opening cor- 

 responding to the size of the reflector, c is a light frame fixed by 

 a support, d, to a piece of wood or other material, e, with which it 

 slides on the bottom of the box in a direction to and from the face 

 of the reflector and lengthwise of the box ; this frame is intended 

 to carry the prepared material on which the impression is to be made 



