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Scientific American Supplement, No. 421, January 26, 1884   By:

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Scientific American Supplement. Vol. XVII., No. 421.

Scientific American established 1845

Scientific American Supplement, $5 a year.

Scientific American and Supplement, $7 a year.


I. ENGINEERING AND MECHANICS. Furcot's Six Horse Power Steam Engine. With several figures. 6714

Foot Lathes. With engraving. 6715

Endless Trough Conveyer. 2 engravings. 6715

Railroad Grades of Trunk Lines. 6715

English Express Trains. Average speed, long runs, etc. 6715

Apparatus for Separating Substances Contained in the Waste Waters of Paper Mills, etc. 2 figures. 6717

II. TECHNOLOGY. An English Adaptation of the American Oil Mill. Description of the apparatus, and of the old and new processes. Several engravings. 6716

Large Blue Prints. By W.B. Parsons, Jr. 6717

III. ELECTRICITY, ETC. Electrical Apparatus for Measuring and for Demonstration at the Munich Exhibition. With descriptions and numerous illustrations of the different machines. 6711

A New Oxide of Copper Battery. By F. De Lalande and S. Chaperon. With description and three illustrations. 6714

IV. MATHEMATICS, ETC. To Find the Time of Twilight. 1 figure. 6720

A New Rule for Division in Arithmetic. 6725

Experiments in Binary Arithmetic. 6726

V. ARCHÆOLOGY. Grecian Antiquities. With engravings of the Monument of Philopappus. Tomb from the Ceramicus. Tower of the winds. The Acropolis. Old Corinth. Temple of Jupiter. The Parthenon. Temple of Theseus, etc. 6721

VI. NATURAL HISTORY, ETHNOLOGY, ETC. Poisonous Serpents and their Venom. By Dr. Archie Stockwell. A serpent's mouth, fangs, and poison gland. Manner of attack. Nature of the venom. Action of venom. Remedies. 6719

Ethnological Notes. Papuans. Negritos. 6720

VII. HORTICULTURE, BOTANY, ETC. The Hornbeams. Uses to which the tree is put. Wood for manufactures. For fuel. Different varieties. With engravings of the tree as a whole, and of its leaves, fruit, flowers, etc. 6724

Fruit of Camellia Japonica. 1 engraving. 6725

VIII. MEDICINE. SANITATION, ETC. House Drainage and Refuse. Abstract of a lecture by Capt. Douglas Galton. Treating of the removal of the refuse from camps, small towns, and houses. Conditions to observe in house drains, etc. 6717

Pasteur's New Method of Attenuation. 6718

Convenient Vaults. 6719

IX. MISCELLANEOUS. Spanish Fisheries. Noticeable objects in the Spanish Court at the late Fisheries Exhibition. 6722

Duck Shooting at Montauk. 6723


Apparatus for use in laboratories and cabinets of physics were quite numerous at the Munich Exhibition of Electricity, and very naturally a large number was to be seen there that presented little difference with present models. Several of them, however, merit citation. Among the galvanometers, we remarked an apparatus that was exhibited by Prof. Zenger, of Prague. The construction of this reminded us of that of other galvanometers, but it was interesting in that its inventor had combined in it a series of arrangements that permitted of varying its sensitiveness within very wide limits... Continue reading book >>

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