IX. MISCELLANEOUS.--Spanish Fisheries.--Noticeable objects
in the Spanish Court at the late Fisheries Exhibition. 6722

Duck Shooting at Montauk. 6723

* * * * *




ELECTRICAL APPARATUS FOR MEASURING AND FOR DEMONSTRATION AT THE MUNICH
EXHIBITION.


Apparatus for use in laboratories and cabinets of physics were quite
numerous at the Munich Exhibition of Electricity, and very naturally a
large number was to be seen there that presented little difference
with present models. Several of them, however, merit citation. Among
the galvanometers, we remarked an apparatus that was exhibited by
Prof. Zenger, of Prague. The construction of this reminded us of that
of other galvanometers, but it was interesting in that its inventor
had combined in it a series of arrangements that permitted of varying
its sensitiveness within very wide limits. This apparatus, which Prof.
Zenger calls a "Universal Rheometer" (Fig. 1), consists of a bobbin
whose interior is formed of a piece of copper, whose edges do not
meet, and which is connected by strips of copper with two terminals.
This internal shell is capable of serving for currents of quantity,
and, when the two terminals are united by a wire, it may serve as a
deadener. Above this copper shell there are two identical coils of