1871. | Proceedings of the Asiatic Society. 77 
very large, and also because by being shaken its effect is greatly 
diminished, and a delicate galvanometer requires most careful ad- 
justment each time before it is used after being moved. To obviate 
the use of a galvanic battery, Mr. Schwendler has suggested a mag- 
neto-electric machine which is much more portable and also has the 
same power asa very large battery. An ordinary magneto-electric 
machine, however, sends (rapid) reverse currents which would 
produce no effect on the needle of a galvanometer, even although 
the galyanometer were very delicate, because the rapid reverse cur- 
rents produce a quick succession of opposite effects on the needle, 
or practically no effect at all. This, it is true, may be obviated by 
attaching to the magneto-electric machine a particular kind of re- 
versing arrangement, but this is liable to get out of order. Conse- 
quently what is required isa delicate portable galvanometer affect- 
ed by reverse currents, and such a galvanometer Mr. Schwendler 
has found in the human tongue, which is most delicate and certain- 
ly is most portable and is affected by reverse currents, therefore is 
most suitable to be used with the magneto-electric machine. 
Mr. Schwendler exhibited the apparatus for testing the re- 
sistence of insulators and explained in detail the advantages of the 
practical method. The experiment, as described in the above 
paper, was tried by several members. 
The President noticed that Mr. Lethbridge has brought an 
interesting communication relating to the old Dutch records in 
Chinsurah. It will be brought to the notice of the Society at the 
next meeting. There were also two other papers on the list. 
ON A NEW GENUS OF BATS, WITH DESCRIPTION OF A NEW SPECIES OF 
Kertvouna, by G. E. Dozson, B. A., M. B., Asst. Surgeon H. I. 
British Forces. (Abstract.) 
The new genus, described in this paper, is characterised by the 
presence of a single phalanx in the 4th finger, two in the 8rd and 
three in the 2nd. The single, terminal phalanx of the 4th finger, 
and second or terminal phalanx of the 3rd are rudimentary, so mi- 
nute as to be scarcely discernible, and, therefore, do not add appre- 
ciably to the length of these fingers. 
