concept

Specification of Alexander McDougall : steam engine and other furnaces, &c.

Specification of Robert Angus Smith and Alexander McDougall : deodorizing and disinfecting sewage matters, and separating manure therefrom.

Sewer rivers : minute of Committee on the practicability of purifying the water flowing from the River Medlock into the Duke of Bridgewater's Canal / Manchester and Salford Sanitary Association.

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McDougall, Alexander.

Catalogue

Specification of Alexander McDougall : steam engine and other furnaces, &c.

Specification of Robert Angus Smith and Alexander McDougall : deodorizing and disinfecting sewage matters, and separating manure therefrom.

Sewer rivers : minute of Committee on the practicability of purifying the water flowing from the River Medlock into the Duke of Bridgewater's Canal / Manchester and Salford Sanitary Association.