The Kinzua Viaduct

A French Dynamometric Car

Setting Slope Stakes

The Plant of the Wood River Smelting Company

Welker's Percussion Rock-Drill

Model Millstone Dress

Sanitary Appliances for Dwellings

The Desk Knapsack

Clip for tentering Machines

Houses of the Fifteenth Century at Chartres

City of London New School

On the Draught of Chimneys

The Treatment of Ready Sensitized Photograph Paper

Prior Invention of the Rheolyzer.—A Note from Professor fleischl

New Sunshine Recorder

On Coating Gelatine Plates

Static Electricity into Voltaic Currents

The Elphinstone-Vincent Dynamo Electric Machine

On Magneto-Electric and Dynamo-Electric Machines

Commercial Albumen

Abakanowicz's Totalizing Integrator

Improved Electric Bell and Battery

Treatment of Diphtheria

Medical Properties of the Potato Bug

(Dory phora decemlinea ta.)

Physical Exercise

A Bismuthic Hair-Dye

Forced Feeding in Phthisis

The Kola Nut Tree

Garden Pests

Japanese Soils—A Natural Cement

Unwritten History, and how to Read it