II. CHEMISTRY.--Standards and Methods for the Polarimetric
Estimation of Sugars.--A U.S. internal revenue report on
the titular subject.--2 illustrations. 13138

The Formation of Starch in Leaves.--An interesting
examination into the physiological _role_ of leaves.--1
illustration. 13138

The Water Molecule.--By A. GANSWINDT.--A very interesting
contribution to structural chemistry. 13137

III. CIVIL ENGINEERING.--Demolition of Rocks under Water
without Explosives.--Lobnitz System.--By EDWARD S.
CRAWLEY.--A method of removing rocks by combined
dredging and ramming as applied on the Suez Canal.--3
illustrations. 13128

IV. ELECTRICITY.--Electrical Standards.--The English Board of
Trade commission's standards of electrical measurements. 13129

The London-Paris Telephone.--By W.H. PREECE,
F.R.S.--Details of the telephone between London and
Paris and its remarkable success.--6 illustrations. 13131

The Manufacture of Phosphorus by Electricity.--A new
industry based on dynamic electricity.--Full details. 13132

The Two or Three Phase Alternating Current Systems.--By
CARL HERING.--A new industrial development in electricity