CONTENTS OF VOLUME II, 



CHAPTER XVII. 



VARIOUS INVENTIONS. 



Stone-crushing mill, 1804 Portable puffer, 1805 Staffordshire potteries 

 Engine for South America Diversity of steam appliance Numerous 

 high-pressure engines West India Dock locomotive Engines at New- 

 castle Blacklead lubricator Engines in Wales Mine engines on 

 wheels, 1804 Engines in London Engines to be sold in market 

 towns Blast-furnaces Aerated steam-boiler St. Ives Breakwater 

 Dolcoath blast copper furnace Davies Gilbert's opinion of the aerated 

 steam-boiler Trevithick's ad vice? to a brewer Agricultural engines 

 West India engines Thrashing engine Horizontal engines Expansive 

 steam Cold surface condenser Air-pump Expansive cam Fire- 

 bars Comparison with Watt's engine Stone-boring engine, 1813 

 Plymouth Breakwater, reduction in cost Locomotive engine, 1813 

 Stone splitting New method of stone boring, 1813 Screw bit, 1813 

 Faliuouth Harbour Exeter Bridge Engine at Lima Proposed train 

 from Buenos Ayres to Lima West India portable engine . . Page 1-35 



CHAPTER XVIII. 



AGRICULTURAL ENGINES ; Loss OF PAPERS. 



Sir Christopher Hawkins's thrashing machine, 1812 Report of three wise 

 men Cost of horse and steam power Wheal Liberty engine Sir 

 John Sinclair and the Board of Agriculture Cost of engine Power of 

 engine Welsh locomotive Trevithick on steam agriculture West 

 Indies engine Horse-power Trevithick on patents Engines in charge 

 of labourers Teapot Detail of agricultural engine Lord Dedunstan- 

 ville's thrashing machine Plymouth Breakwater locomotive Wheal 

 Prosper engine Wheal Alfred engine Steam-plough Cultivation of 

 commons Combined steam-tormentor, narrower, and shoveller Mr. 

 Rendal's thrashing machine Cost and work performed by thrashing 

 engines Their durability Bridgenorth engine Trcvithick's drawings 

 li^ht the fires .. 36-08 



a 2 



