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NEW YORK, SATURDAY, JULY 3, 1880.
TABLE OF CONTENTS OF
THE SCIENTIFIC AMERICAN SUPPLEMENT
No. 235,
For the Week ending July 3, 1880.
Price 10 cents. For sale by all newsdealers.
| PAGE | |
| I. ENGINEERING AND MECHANICS.—The New Railway up Mount Vesuvius. 6 illustrations. Plan of road.—General view of mountain and railway.—Side view and end view of passenger car.— Mount Vesuvius Railway.—Map showing railway, mountain, crater, and surrounding country.—The carriage road and railway... | 3735 |
| The St. Gothard Tunnel —Notes on the junction of the two galleries. By Dr. Calladon... | 3736 |
| The St. Gothard Tunnel.—Conditions and causes of air currents in the tunnel... | 3736 |
| Protection of Ships from Loss by Fire and from Loss by Sinking. Recent improvements in the construction of ships and steamers... | 3738 |
| Regenerative Stoves.—A Sketch of their History and Notes on their Use. By John N. Hartman. An important paper read at the Pittsburg meeting of the American Institute of Mining Engineers. 1 figure... | 3738 |
| Cowper's Hot Blast Stoves. 2 full page illustrations of hot blast stoves for a pair of furnaces.—Plan and cross section of stove.—Plan and cross section of furnace.—Plan and cross section of gas downcomer.—Sectional elevation of stove and downcomer... | 3739 |
| Wilson's Lock-up Safety Valve. An important improvement. 10 figures... | 3742 |
| Working Low Grade Ores... | 3742 |
|
The Largest Concrete Tank in England... | 3742 |
| II. ELECTRICITY, ETC.—Siemens' Improvements in Electric Railways. 4 figures. Siemens' combined steam and electric railway.—Siemens' electric mail railway... | 3743 |
| Difference in the Actions of Positive and Negative Electricity... | 3743 |
| Forces Exciting Electricity... | 3743 |
| The New Electrical Middlings Purifier. By Thos. B. Osborne. 5 figures... | 3744 |
| Physical Society, London. Photo—electricity.—Electrometer key. —Air in water.—Steam thermometer... | 3745 |
|
Atmospheric polarization. Influence of terrestrial magnetism... | 3745 |
| III. HYGIENE AND MEDICINE.—Lead Poisoning. Clinical lecture by Dr. WM. Pepper. Effects of a cosmetic of carbonate of lead. —Symptoms of lead poisoning.—Affinity of lead for nerves and muscles.—Treatment of lead poisoning... | 3745 |
| Recent Investigations of the Blood... | 3746 |
| The Pulse. Lecture on the pulse in health and disease, by Dr. T. A. McBride... | 3746 |
| Some Early Symptoms of Insanity... | 3747 |
| An Improved Method of Applying Antiseptic Vapors... | 3747 |
|
Treatment of Phthisis by Inhalation of Borax and Salicylic Acid... | 3747 |
| IV. CHEMISTRY AND TECHNOLOGY.—Detection of Starch in Cane Sugar. By P. Casamajor... | 3747 |
| Double Lever Cement Testing Apparatus. 1 figure... | 3748 |
| Prediction of Chemical Elements... | 3748 |
| Oil of Sage... | 3748 |
| Bronzing Iron... | 3748 |
| Rust Preventing Compound... | 3748 |
|
Argentine Sheep and Wool... | 3748 |
| V. NATURAL HISTORY, ETC.—Brain of Limulus Polyphemus. General anatomy of the brain.—Internal structure and histology of the brain.—Comparison of the Limulus brain with the brain of other arthropods... | 3749 |
| An Unfortunate White Whale. A live whale with a broken neck... | 3749 |
| Ethereal Oil of California Bay Tree. By J. M. Stillman... | 3749 |
|
Forest Trees of North America. Prof. Sargent's catalogue (continued
from Supplement No. 234). Cedars, Red Woods, Firs,
Spruces, etc.... | 3750 |