The CONTENTS.

x

Of conftruEling blowing machines for low falls ——

Explanation of the plate -

Black Diamond - -- ——

Indian ink from lamp-black and glue

Black varnish for metals - ---

Separation of the alcali of sea fait —

1. Purification of sea fait - -—-

2. Preparation of cubic nitre

3. Separation of the mineral alcali from cubic nitre

Page

6 3 56 3 763 7

638

6 396 39639642

645

4

COM-

ERRATA.

Vagi 89, lint 10,11. ftr two parts of tin and three of gold, rend two parts of gold andthree of tin.

5;H» lute 10 sritn tie bottom, for 87 parts rend 97 parts.