Chlorine Gas and Soda by the Electrolytic Process.--The decomposition
of common salt solution into chlorine and caustic soda
on the commercial scale

How Enameled Letters are Made.--The manufacture of separate
enameled letters as conducted in London.--5 illustrations

How Mechanical Rubber Goods are Made.--Hose, corrugated
matting, packing, and jar rings.--Processes of their production

* * * * *




THE LIVING JERBOA IN THE ZOOLOGICAL GARDEN OF BERLIN.


Like other strangely formed quadrupeds, the jerboas are counted among
the curiosities of the animal kingdom, and as such are described in
natural history; but, nevertheless, there has never been a good
exhibition of them, for the simple reason that live jerboas are seldom
seen in Europe, as they usually die during the journey hither or soon
after their arrival. After some hesitation I decided to purchase a
pair that I happened to find mentioned in the price list of Mr. C.
Reiche, of Alfeld, as one of the most interesting specimens obtained
during his expedition to South Africa the year before; but I, also,
found the sensitiveness and delicacy of the jerboa very trying, for
the short journey from Alfeld to this city caused the death of the