--Apparatus and
calculations for use.--1 illustration. 8959
XI. TECHNOLOGY.--Impurities in Photographic Chemicals, and
Tests for Same.--Table referred to in a paper read before
the Birmingham Photographic Society by G.M. Jones, M.P.S. 8957
Molasses, how made.--Work on Plantations Graphically
Described.* 8961
Optical errors and human mistakes.--By ERNST GUNDLACH.--On
the examination of optical glasses.--A paper read before
the Buffalo meeting of the A.A.A.S. 8963
Soap.--By HENRY LEFFMANN, Ph.D. 8962
Somzee's New Gas Burners.--Interesting description of
regenerative burners.--9 figures. 8958
The Clamond Gas Burner.--Of value as a supplement to the
above named article, describing an incandescent burner.
--1 illustration. 8959
Wood Oil.--A new industry worked on the large scale in
Sweden. 8962
* Transcriber's Note: "Work on Plantations..." was
originally part of TOC entry "Optical Errors..."
* * * * *
COMPOUND HYDRAULIC PRESSES.
Pages:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25