<l38 SEC. 12. - APPLIED MECHANICS. 



2178ch. Model of the Screw Steamer " City of Rich- 

 mond." Length 440 ft., breadth 43 ft. 6 ins., depth 34 ft. 

 4,606 tons gross. David and William Henderson fy Co. 



Built and engined by the late firm of Tod & McGregor in 1873, for the 

 Inman Line to trade between Liverpool and New York. Ship rigged. 



Engines, direct acting compound inverted, cylinders 76 ins. and 120 ins. 

 diameters, length of stroke 5 ft. ; propeller 22 ft. diameter ; horse-power 

 670 nominal ; speed at trial trip, 17 knots per hour ; 10 boilers, 30 furnaces. 



2178ci. Model of the Screw Steamer " Princess 

 Royal/' Dimensions, length 200 ft., breadth 28 ft., depth 15 ft. 

 527 tons gross. David and William Henderson and Co. 



Built by the late firm of Tod & McGregor in 1861, for the Glasgow and 

 Liverpool trade, schooner rigged. 



Engines, direct acting inverted, compounded in 1873 by having 2 high 

 pressure cylinders 24 inch diameter placed on top of the 45 inch cylinders 

 length of stroke 2 ft. 6 ins., horse-power 170 nominal, propeller 12 feet diameter, 

 speed 12 knots per hour. 



2178cj. Model of the Screw Steamer " Lady Nyessa." 



Dimensions, length 150 ft., breadth 14 ft., depth 6ft. 



David and William Henderson and Co. 



Built by the late firm of Tod & McGregor in 1861, for the late Dr. Living- 

 stone, for exploration in Central Africa. To facilitate transportation of the 

 vessel from the Zambesi to Lake Nyessa, she was constructed in 12 segments 

 in her length, each segment being in two pieces which were bolted together 

 through angle iron frames. Dr. Livingstone on his return home from Africa, 

 on his first exploration, sailed in her from the Zambesi to Calcutta. The 

 " Lady Nyessa " was fitted with two propellers, one abaft the other on the same 

 shaft. 



Engines high pressure, cylinders 14ft. diameter, length of stroke 12 inches, 

 horse-power 25 nominal. 



2178ck. Model of the Screw Steamer " Bengal." 



Dimensions, length 297 ft., breadth 39 ft., depth 27 ft. 6 ins. 2,235 

 B.M. tons. David and William Henderson and Co. 



Built by the late firm of Tod & McGregor in 1852, for the Peninsular and 

 Oriental Steam Navigation Co., lately trading in the China Seas. 



Engines beam geared, cylinders .80 inches diameter, stroke 5 feet, horse- 

 power 470 nominal. 



2178cl. Model of the Paddle Steamer " Trafalgar.' 9 



Dimensions, length 190 ft., breadth 28 ft. 6 ins., depth 16 ft. 

 4 ins. 689 tons gross. David and William Henderson and Co. 



Built and engined by the late firm of Tod & McGregor in 1847, for Messrs. 

 Wm. Watson & Co., Dublin, for their Liverpool and Dublin trade, schooner 



rigged. 

 Eni 



ngines oscillating, cylinders 69 inches diameter, length of stroke 5 feet 

 6 inches, horse-power 360 nominal. 



2178cm. Model of the Paddle Steamer " Princess 

 lloyal." David and William Henderson and Co. 



