vi CONTENTS OF VOLUME 11. 



CHAPTER XXIII. 



COSTA RICA. 



Gerard at Punta de Arenas, in the Pacific, in 1822 Nicolas Castro worked a 

 gold mine, 1821 Alverado's ore-grinding machine, 1822 Climate of 

 Costa Rica Mines in the Cordillera Canal from the river Machuca to 

 Quebrada-honda Castro's mine Padre Arias, or the Priest's mine 

 Trevithick and Gerard's proposal for iron railroads, &c., for the mines of 

 Costa Hica, 1827 New line of road from San Juan, on the Atlantic, to 

 the Costa Rica mines Serapique River navigable Trevithick's diary 

 A mule track easily constructed Comparative distance to the mines from 

 the head of the Serapique on the Atlantic, and Punta de Arenas on the 

 Pacific Trevithick nearly drowned in the Serapique Nearly starved 

 before reaching San Juan Performs a surgical operation Designed the 

 locomotive between breakfast and dinner Robert Stephenson and Trevi- 

 thick at Carthagena Nearly drowned in the Magdalena Saved by 

 Mr. Bruce Napier Hall Trevithick nursed Robert Stephenson 



Page 2GO-275 



CHAPTER XXIV. 



RETURN TO ENGLAND. 



P>odiiiin School, 1827 Cube root Trevithick's reception Saving in 

 Cornish mines Model gun Gerard's return, 1827 His meeting 

 Robert Stephenson His remarks on Costa Rica Montelegre's search for 

 a better line of road Mr. M. Williams's proposal Change of Ministry, 

 and the ^nn-carriage Model of iron packet-ship and engine Robert 

 Stephenson's remarks on mining Trevithick's rejection of purchase- 

 money 276-283 



CHAPTER XXV. 



GUN-CARRIAGE IRON SHIPS HYDRAULIC CRANE ICE MAKING DRAIN- 

 AGE OF HOLLAND CHAIN -PUMP OPEN -TOP CYLINDER HAYLE 

 HARBOUR PATENT RIGHTS PETITION TO PARLIAMENT. 



Trevithick's description of gun-carriage and iron ship Select committee 

 Glasgow iron-ship builders Trevithick's comparison of gunpowder and 

 steam Cranes worked by air or water Artificial cold Liberality 

 Holland Drainage Dredging Zuyder Zee Hydraulic crane 

 Dutch pumping engine Chain-pump Haarlem Lake Rhine 

 Windmills ilayle Harbour Disputed pole-engine patent right Peti- 

 tion to Parliament, 1828 Marine boilers Steam pressure Engine 

 duty Lords of the Treasury refuse the petition Davies Gilbert's 

 views Marine compound engine of 1871 .. 281-31-1 



