Petroleum Oils. Character and properties of the various distillates
of crude petroleum. Fire risks attending the use of the
lighter petroleum oils
Composition of the Petroleum of the Caucasus. By P. SCHULZENBERGER
and N. TONINE
Notes on Cananga Oil. or Ilang-Ilang Oil. By F. A. FLÜCKIGER.
1 figure. Flower and leaf of Cananga odorata
Chian Turpentine, and the Tree which Produces It. By Dr.
STIEPOWICH. of Chios, Turkey
On the Change of Volume which Accompanies the Galvanic Deposition
of a Metal. By M. E. BOUTY
Analysis of the Rice Soils of Burmah. By R. ROMANIC, Chemical
Examiner, British Burmah
III. PHYSICS AND PHYSICAL APPARATUS.--Seyfferth's Pyrometer.
7 figures.--Pyrometer with electric indicator.--Method of
mounting by means of a cone on vacuum apparatus.--Mounting by
means of a sleeve.--Mounting by means of a thread on a tube.--
Mounting by means of a clasp in reservoirs.--The pyrometer
mounted on a bone-black furnace.--Mounted on a brick furnace
Delicate Scientific Instruments. By EDGAR L. LARKIN. An
interesting description of the more powerful and delicate
instruments of research used by modern scientists and their
marvelous results
The Future Development of Electrical Appliances. Lecture by
Prof. J. W. PERRY before the London Society of Arts.--Methods
and units of electrical measurements
Researches on the Radiant Matter of Crookes and the Mechanical
Theory of Electricity. By Dr. W. F. GINTL
Economy of the Electric Light. W. H. PREECE'S Experiments
Investigations
On the Space Protected by a Lightning Conductor. By WM. H.
PREECE.--5 figures