Patent for a new and improved electric call or signal apparatus. This design consists in "a telegraph or telephone circuit, the combination, with a polarized electro-magnet and a short circuit around the same, which is closed when the magnet is transversed by a constant current of a given polarity, of a battery having the proper pole to line, a switch for connecting the line and battery circuits, and a telephone in the battery circuit, whereby the telegraph or telephone line may be tested" (lines 41-49).
The Texas State Historical Association Quarterly Report includes "Papers read at the meetings of the Association, and such other contributions as may be accepted by the Committee" (volume 1, number 1). These include historical sketches, biographical material, personal accounts, and other research. Index is located at the end of the volume starting on page 561.
Photograph of a derailed N de M locomotive train. The engine number is 862. Insurrectos have surrounded what is left of this train and appear to be salvaging whatever supplies that they can find useful. The N de M is officially known as Ferrocarriles Nacionales de México. The N de M absorbed the Mexican Central Railroad in 1909.
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