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Stories by B. A. Johns

Regulator for Indirect and Direct-Indirect Steam Heating

February 5, 1910 — B. A. Johns

Thermostatic Regulator for Smoke Pipes

October 9, 1909 — B. A. Johns

Drop Light Made From an Oil Lamp

August 7, 1909 — B. A. Johns

How To Drill Through Brick and Soft Stone

February 27, 1909 — B. A. Johns

Home-Made Metal Lamp Shade

November 28, 1908 — B. A. Johns

Ejector Made out of Pipe Fittings

November 21, 1908 — B. A. Johns

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