9765
VI. METEOROLOGY.--The "Meteorologiske Institut" at Upsala,
and Cloud Measurements.--The methods used and results
attained in the famous Upsala observatory under Profs. Ekholm
and Hagstroem; the measurement of clouds.--1 illustration. 9764
VII. MISCELLANEOUS.--Drawing Instrument for Accurate Work.--By
J. LEHRKE.--A magnifying instrument for fine work and
measurements.--2 illustrations. 9754
Liquid and Gaseous Rings.--Notes on the production of vortex
rings.--The different aspects and breaking up of smoke
rings.--6 illustrations. 9760
Scenes among the Extinct Volcanoes of Rhineland.--The
picturesque features of the geological formations of this
region described.--10 illustrations. 9762
Shall We Have a National Horse?--An eloquent plea by RANDOLPH
HUNTINGTON for the production of a good type of animal.
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