Marine Bügeleisen funktioniert. Chicago. Katalog kostenlos. Für den Bergbau Motoren. J. S. Mundy Newark NEW JERSEY" U S." Metall Politur. Indianapolis. Proben kostenlos. Yankee Vorstellungen. Waterbury Taste Co.Waterb'y Ct. Griff und sprach Mchy. Ober Mfg. Co.10 Bell St. Verdruß fällt 0. Buchen Sie 'Dies und Stanzformenbau' $ 1 Postpaid. J. L. Lucas Bridgeport Ct. Für den Index Blatt senden. Besondere und automatischen Maschinen gebaut, um Zeichnungen auf Vertrag. Die garvin Machine Co 141 Varick St. N.Y., der gefeierte "Hörner Durch - akroyd "Patent Sicherheit Öl Motor durch die De La Vergne Kühl- Ma chine Firma gebaut wird. Fuß von Osten 138 Street New York
Dieses Bild kann kleinere Mängel aufweisen, da es sich um ein historisches Bild oder ein Reportagebild handel
Marine Iron Works. Chicago. Catalogue free. For mining engines. J. S. Mundy Newark N. J. 'U. S.' Metal Polish. Indianapolis. Samples free. Yankee Notions. Waterbury Button Co. Waterb'y Ct. Handle & Spoke Mchy. Ober Mfg. Co. 10 Bell St. Chagrin Falls 0. Book 'Dies and Diemaking' $1 postpaid. J. L. Lucas Bridgeport Ct. Send for index sheet. Special and Automatic Machines built to drawings on contract. The Garvin Machine Co. 141 Varick St. N.Y. The celebrated' Horns by-Akroyd ' Patent Safety Oil Engine is built by the De La Vergne Refrigerating Ma chine Company. Foot of East 138th Street New York. The beat book for electricians and beginners in elec tricity is ' Experimental Science' by Geo. M. Hopkins. By mail $4. Mium & Co. publishers 361 Broadway N.Y. tIr Send for new and complete catalogue of Scientific and other Books for sale by Munn & Co. 361 Broadway New York. Free on application. Information and not for publication. References to former articles or answers should give date of paper and page or number of question. some answers require not a little research and though we endeavor to reply to all either by letter or in this department each must take his turn. Buyers wishing to purchase any article not advertised in our columns will be furnished with addresses of houses manufacturing or carrying the same. Special Written Information on matters of personal rather than general interest cannot be expected without remuneration. Scientific American Supplements referred to may be had at the °Mee. nvie 10 cents each. Books referred to promptly supplied on receipt of price. Minerals sent for examination should be distinctly marked or labeled. (7993) J. G. B. writes : Will you please tell me through the columns of your paper if the mouth of the Mississippi River is higher than its head waters ? Has the subject ever been discussed by the North Ameri sippi River Is several miles further from the center of the earth than its source is. This is due to the form of the earth wh
