308 Miscellanvous. 
a Wheatstone’s bridge, the deflection of the needle followed 
the direction of the current, and the anticipated loss or 
gain of current was fully realised. If you can find room 
for this. in the TECHNOLOGIST, you will greatly oblige, 
Yours, &c, 
CHARLES BROOKE. . 
16 Fitzroy Square, W. ‘ 
REVIEW. 
Notice sur les Collections Scientifiques, et sur le Musée 
‘Commercial-Ludustriel, Gand-Belgique. Impremerie et 
lithographie, C. Annost Braeckman. 1866. 
WE have before us, a well-printed and handsomely-illus- 
trated pamphlet, compiled by Professor Bernardin, of the 
well-known J/atson de Melle, of Gand. We can confi- 
dently recommend this little work to all visitors of that 
town, as a carefully-written, and intelligible guide to the 
Museum. Among the many interesting and curious anti- 
quities to be found at the “ Musée Commercial-Industriel,” 
we must call attention to the following, which will be found 
under the third section of Professor Bernardin’s Cata- 
logue :—“ Fragment de pouter en cédre, découvert lors des 
excavations faites par M. Layard a Ninéve. Phylactére 
Juif: Fragment de Mosaique de Pompei.” 
MISCELLANEOUS. 
PHOTOGRAPHIC POSITIVE PAPER.—Among the various 
contrivances which are daily contributed towards the im- 
provement of this art there is a kind of positive paper, 
invented by Mr. A. Taylor. Instead of albumenising or 
salting it by means of the usual preparations, says the Szar, 
he coats his new paper witha solution of white lac in 
water, impregnated with borax. Thus prepared, the sheet 
is sensitised and printed in exactly the same way as com- 
