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VOL. XL., No. 13. [New Series.] Thirty-fourth Year.

NEW YORK, SATURDAY, MARCH 29, 1879.

Contents.

(Illustrated articles are marked with an asterisk.)

[Africa crossed again] 193
[Aluminum]197
[Barometer, aneroid]201
[Bolt, door, improved*]198
[Bread, snow-raised]199
Buffalo, domestication of the197
[Carpet beetle, remedy for the]195
[Chimney flues]198
[Clocks, pneumatic]196
[Cooper, Peter, as an inventor]193
[Crusher, ore, novel*]194
[Electricity, statical, phenom. in.]194
[Flour, banana]195
[Furnace, imp., for burn'g garbage*]198
[Hardware, English & American]201
[Ice cave of Decorah, Iowa]196
[Inventions, new agricultural]199
[Iron, advance in]201
[Light, albo-carbon]201
[Magnetism, curious facts in]194
[Motor, Gary, the*]196
[Natural science, charms of]200
[Neutral line, Gary's]196
[Notes and queries]203
[Patent laws]192
[Patents, American, recent]194
[Pen, stencil, new*]195
[People, a strange]195
[Phosphorescence]199
[Plants protected by insects]201
[Pleuro-pneumonia]192
[Railway, Vesuvius]200
[Reading and eyesight]199
[Reading, taste for]193
[Regulator, engine, novel*]195
[Spain a field for machinery]193
[Specimen, a rare geological]196
[Sponges, glass*]200
Steamship, ocean, large196
[Table, ironing, new*]194
[Telegraph, writing]196
[Telegraph, writing, Cowper's]197
[Telegraphy, ocean, progress of]195
[Tiller, steam, new*] 191
[Tree, pottery]200
[Vase, Greek, ancient*]199

TABLE OF CONTENTS OF
THE SCIENTIFIC AMERICAN SUPPLEMENT
No. 169,
For the Week ending March 29, 1879.
Price 10 cents. For sale by all newsdealers.

I. ENGINEERING AND MECHANICS.—The Herreshoff Torpedo Boat, recently built at Bristol, R. I., for the British Government. The novelties in the placing of the screw, etc. The Peculiar Boiler. 4 figures.—Improved Hopper Steam Dredger. 2 figures.—The St. Gothard Tunnel.—The Beacon Tower of Lavezzi. 3 figures.

II. ARCHITECTURE.—Bath Abbey Church. Full page illustration.