1867 Six Hundred Receipts by John Marquart

600 MISCELLANEOUS VALUABLE RECEIPTS.

260

silver a little below standard ;

by

appearance of

more

some persons it is even preferred

to the

expensive We strongly recommend manufacturers not to use a metal inferior to this. compound.

No. 583.

No. 3.

Gerraayi Silver.

— Copper, 8 ;

Electrum. This IS a compound which, for ease of working and beauty of appearance, is to be preferred to all others by the manufacturer, and is generally preferred by the pub- It has a shade of blue like very highly-polished nickel, 4 ; zinc, 3i. lic.

it tarnishes less easily than silver.

silver ;

No. 584.

German Silver.

JVo. 4.

Copper, the richest in nickel that can be made without injuring the mechanical properties of the metal. It is a very beautiful compound, but requires a higher heat for fusion than the preceding, and will be found rather more difficult to work. 8 ; nickel, 6 ; zinc, 3|. This is

No. 585.

German Silver.

No. 5.

— Copper, 8 ;

Tutenag. These proportions were obtained by the analysis of a piece of Chinese tutenag of the best ordinary quality ; but some of the specimens of Chinese tutenag are equal nickel, 3 ; zinc, 4|.