136 Miscellaneous Intelligence. 
-used by them is composed of zinc 10 parts, tin 26 parts, and lead Y 
parts. A layer of chlorid of zinc mixed with an equal weight of 
ammoniac is kept in a state of fusion on the surface of the metal alloy, 
into the melted we, — “a allowed to remain therein longer than is 
absolutely necessary to receive a coating of the alloy. The patentees 
use also the alloy eres? af fusible metal,” which they prefer to make 
as follows: bismuth 8 parts, lead 5 parts, and tin 3 parts; alloys of 
other compositions will do, ae that their melting points are be- 
low 400 deg. Fah. The patentees claim the use, in the manner above 
sr of the alloys specified nae ib cekerred to, and of the method above 
cribed for coating metals with such alloys. 
Y Gosting Iron or other Metal with Tin, or Tin alloyed with Lead— 
For this purpose the patentees use a vessel of iron, or other suitable 
material, in which the tin or alloy is melted, and on the surface of the 
_ fused metal lay a ree of chlorid of zinc, mixed with about its ows 
weight of sal-ammoniac. The metal to be coated is then. dipped into 
the yson? mone or aliey, until the coating is effected. The pene’ stale 
that it will be found advantageous, in the use of this and the preceding 
processes, to dip the metal to be coated several times, in order ‘that i 
may come in contact often with the layer of fused salt ; also advanl 
geous in the preceding process to dip the iron or other metal into a hot : 
niac, forming a saline inipouel: which is “ly in a state of fusion 00 
t e of the melted tin or alloy, in the process of coating metals 
with pe meta 
- Coating Iron or other Metal with Silver, or Alloy of Silver an 
er.—In this case, the surface of the iron or other metal to be 
fer to use for the amalgamating process, a mixture of 12 parts of mer 
cury, 1 of zinc, 2 of sulphate of iron, 2 of muriatie acid, and 12 2 of 
water; the mixture to be heated, _ Plc: 200 deg. ne . the iron 
to be amalgamated i is . in the mix and the me ry rubbed 
on the surface of the iron. The he or ales of saves is gn melted 
in a crucible, placed in a + shiiabie furnace, and the amalgamated m 
is dipped into it until it has sequined a Proper: Odaiting of the silver 
alloy employed. — 
ean this head, the patentees claim the process of ea iron 
other metal with silver, or sey of silver ar copper, by amalg# 
phage the surface of the metal to be coated, and then putting: ve into the 
me ted silver or alloy. > 
Coating Iron with Copper, Pir sai. or any Alloy of Coppers with 
Zinc, Tin, or Lead sig this case, the copper or alloy used is melted 
in some suitable vessel, and on the surface of the melted ‘mei 
placed a layer of borosilicate of lead, (composed of 112 parts of x7 
of lead, 24 of boracic acid, and 16 of silica,) and when the —_ and 
the salt are in a state of fusion, the metal to be coated is 
through the layer of salt into the melted metal, where it is ee’ to 
