Circulars free. Mention paper. J. S. BIRCH & CO., 33 Dey Street, N. Y. ---------------------------------------------------------------------- THE GEOLOGICAL ANTIQUITY OF Flowers and Insects. By J. E. TAYLOR, F.G.S. A plain, comprehensive review of the subject, bringing forward many instructive facts; with six illustrations. The invariable correlation between insects and flowers. How they are fossilized. Fossil botany. Geological Evidences of Evolution. Correspondence in the succession of Animal and Vegetable life. Flowers necessary to Insects, and Insects necessary to Flowers. Insects and Plants in the Devonian, the Switzerland Lias, the English Stonesfield Slate, the Tertiary Strata, the Coal Measures, a Greenland, and other formations. A Peculiar Aspect of Evolution. Contained in SCIENTIFIC AMERICAN SUPPLEMENT NO. =120.= Price 10 cents. To be had at this office and of all newsdealers. ---------------------------------------------------------------------- THE PHONOGRAPH AND ITS FUTURE. BY THOMAS A. EDISON. The instrument and its Action. Durability, Duplication, and Postal Transmission of Phonograph Plates. The probable great utility of the Phonograph in Letter-writing, Business Correspondence and Dictation; Literature; Education; Law; Music; Oratory, etc. Application to Musical Boxes, Toys, and Clocks. Telegraphy of the Future; the Phonograph and Telephone combined. Being a most interesting and valuable paper by the author and inventor of the Phonograph himself. Contained in SCIENTIFIC AMERICAN SUPPLEMENT, NO. =124.= Price 10 cents. To be had at this office and of all newsdealers. ---------------------------------------------------------------------- THE [Illustration: "Scientific American." In Gothic script] =The Most Popular Scientific Paper in the World. THIRTY-THIRD YEAR.= =Only $3.20 a Year including Postage. Weekly. 52 Numbers a Year.= =This widely circulated= and splendidly illustrated paper is published weekly. Every number contains sixteen pages of useful information, and a large number of original engravings of new inventions and discoveries, representing Engineering Works, Steam Machinery, New Inventions, Novelties in Mechanics, Manufactures, Chemistry, Electricity, Telegraphy, Photography, Architecture, Agriculture, Horticulture, Natural History, etc. =All Classes of Readers= find in THE SCIENTIFIC AMERICAN a popular _resume_ of the best scientific information of the day; and it is the aim of the publishers to present it in an attractive form, avoiding as much as possible abstruse terms. To every intelligent mind, this journal affords a constant supply of instructive reading. It is promotive of knowledge and progress in every community where it circulates.