NEW YORK, JULY 26, 1884
Reading edition
Scientific American Supplement. Vol. XVIII, No. 447.
Scientific American established 1845
Scientific American Supplement, $5 a year.
Scientific American and Supplement, $7 a year.
TABLE OF CONTENTS.
I. CHEMISTRY.--The Bitter Substance of Hops.--By Dr. H. BUNGENER. --What gives hops their bitter taste?--Processes for obtaining hop-bitter acid.--Analysis of the same.
II. ENGINEERING AND MECHANICS.--Improvements in the Harbor of Antwerp.--With engraving of caisson for deepening the river.
Progress of Antwerp.--Recent works in the harbor.
Bicycles and Tricycles.--By C.V. BOYS.---Advantages of the different machines.--Manner of finding the steepness of a hill and representing same on a map.--Experiments on ball bearings.-- The Otto bicycle.
The Canal Iron Works, London.
Marinoni's Rotary Printing Press.--With 2 engravings.
Chenot's Economic Filter Press.--With engraving.
Steel Chains without Welding.--Method and machines for making same.--Several figures.
III. TECHNOLOGY.--Some Economic Processes connected with the Cloth Making Industry.--By Dr. WM. RAMSAY.--How to save and utilize soap used in wool scouring.--To recover the indigo from the refuse.--Extraction of potash from suint.--Use of bisulphide of carbon.
IV. PHYSICS. ELECTRICITY, ETC.--Thury's Dynamo Electric Machine. --5 figures.
Breguet's Telephone.
Munro's Telephonic Experiments.--9 figures.
Apparatus for Maneuvering Bichromate of Potassa Piles from a Distance.--2 figures.
Magnetic Rotations.--By E.L. VOICE.--1 figure.
Lighton's Immersion Illuminator.--1 figure.
Foucault's Pendulum Experiments.--By RICHARD A. PROCTOR. --4 figures.
V. ARCHITECTURE, ART, ETC.--St. Paul's Vicarage, Forest Hill, Kent.--2 engravings.
Designs for Iron Gates.--An engraving.
VI. ASTRONOMY.--A New Lunarian.--By Prof. C.W. MACCORD. --With 3 figures.
VII. GEOLOGY.--Coal and its Uses.--By JAMES PYKE.--Formation of carboniferous rocks and the coal in the same.--Processes of nature.--Greatness of this country due to coal.--Manufacture of gas.--Products of the same.
VIII. NATURAL HISTORY, BOTANY. ETC.--The Wine Fly.--The egg.--Larva.--Pupa and fly.
The "Potetometer." an Instrument for Measuring the Transpiration of Water by Plants.--1 figure.
Bolivian Cinchona Forests.
Ferns.--Nephrolepis Davillioides Furcans and Nephrolepis Duffi. --2 engravings.
IX. PHYSIOLOGY, HYGIENE, ETC.--The Upright Attitude of Mankind. --Review of a lecture by Dr. S.V. CLEVENGER, in which he tries to prove that man must have originated from a four footed being.
Our Enemies, the Microbes.--Affections caused by the same.-- Experiments of Davaine, Pasteur, and others.--How to prevent bacterides from entering the body.--5 figures.
X. BIOGRAPHY.--Gaston Plante, the Scientist.--With portrait
Warren Colburn, the American Mathematician.