SCIENTIFIC AMERICAN SUPPLEMENT NO. 497

NEW YORK, JULY 11, 1885

TABLE OF CONTENTS.
I.	CHEMISTRY AND METALLURGY.--Making Sea WaterPotable. --By THOS. KAY
	The Acids of Wool Oil
	The New Absorbent for Oxygen
	Depositing Nickel upon Zinc.--By H.B.SLATER
II.	ENGINEERING AND MECHANICS.--Foundations inQuicksand, Lift Bridge over the Ourcq Canal.--3 figures
	St. Petersburg a Seaport.--A canal cut fromCronstadt to St. Petersburg.--Opening of same by the Emperor andEmpress.--With full page engraving
	The New French Dispatch Boat Milan.--Withengraving
	The Launching and Docking of Ships Sidewise.--4figures
	Improved High Speed Engine.--12 figures
	The National Transit Co.'s Pipe Lines for theTransportation of Oil to the Seaboard.--With map anddiagram
	The Fuel of the Future.--History of naturalgas.--Relation to petroleum.--Duration of gas, etc.--With table ofanalyses Closing Leakages for Packing.--Use of asbestos in stuffingboxes
III.	TECHNOLOGY.--Luminous Paint.--Processes ofmanufacture Boxwood and its Substitutes.--Preparation of same formarket, etc.--A paper written by J.A. JACKSON for the InternationalForestry Exhibition
IV.	ARCHÆOLOGY.--An Assyrian Bass-Relief 2,700years old
V.	NATURAL HISTORY.-The Flight of the Buzzard.--ByR.A. PROCTOR
VI.	BOTANY, ETC.--Convallaria.--A stemlessperennial.--By OTTO A. WALL, M.D.--Several figures
VII.	MEDICINE, HYGIENE, ETC.--Gaiffe's New MedicalGalvanometer.--1 figure
	The Suspension of Life in Plants andAnimals
VIII.	MISCELLANEOUS.--Composite Portraits.--6illustrations Hand-Craft and Rede-Craft.--A plea for the firstnamed.--By D.G. GILMAN