Driving gear Mechanism for Lift Hammers.--2 figures 5819

De Junker and Ruh's Machine for Cutting Annular

Wheels.--3 figures 5819

Recent Hydraulic Experiments.--Results of experiments

on the flow of water in the Ganges Canal 5819

The Germ: Shall It be Retained in Flour? By Arthur

Atkins 5820

Scientific American Supplement, No. 365, December 30, 1882 · 第 6 / 48 题