A WEEKLY JOURNAL OF PRACTICAL INFORMATION, ART, SCIENCE, MECHANICS, CHEMISTRY, AND MANUFACTURES. Vol. XXII.—No. 25. ; $3 per Annum. NEW YORK, JUNE 18, 1870. TNEW SERIES.] 1 [IN ADVANCE.] The Alleghany Bridge at Pittsburgh, Fa. with the durability of all kinds of materials. Many a farmer that a…
Patents · Assignor · Metallic · Parts · Consists · Metallic compression · Iron · Sheet metal · Letters patent · Erwin manufacturing · Dated june · Compression casting · Sulphuric acid · Patent office · Steam engine · Wrought iron
Internet Archive · Public domain (published before 1931). Free to use for anything.
![An illustration from Champ fleury : au quel est contenu lart & science de la deue & vraye proportio[n] des lettres attiques, quo[n] dit autreme[n]t lettres antiques, & vulgairement lettres romaines proportionnes selon le corps & visage humain ... (1529)](https://img.insideoutlibrary.com/img/200/ia-champfleuryauque00tory-40-16.webp)