1. The Electric Current and its production by Chemical means--
2. Production of Electric Currents by Mechanical means--
3. Dynamo-Electric Machines--4. Electric Lamps--5. Lead--
6. Ship Lighting.
_The Practical Flax Spinner_; being a Description of the Growth,
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_Foundations and Foundation Walls for all classes of Buildings_, Pile
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_Manual for Gas Engineering Students._ By D. LEE. 18mo, cloth 1_s._
_Hydraulic Machinery, Past and Present._ A Lecture delivered to the
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_Twenty Years with the Indicator._ By THOMAS PRAY, Jun., C.E., M.E.,
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_Annual Statistical Report of the Secretary to the Members of the Iron
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_Standard Practical Plumbing_; being a complete Encyclopaedia for
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_Pneumatic Transmission of Messages and Parcels between Paris and
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_List of Tests_ (_Reagents_), arranged in alphabetical order, according
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