71

E.—l

All the coals tried made plenty of steam, although, as already stated, the work is such that no man would be able for it if employed on a fifty-mile run. The following analysis of Kaitangata and Green Island (Walton Park Coal Company) was made by Professor Black, of the University of Otago ; — Kaitangata. Evaporative power ... ... ... ... ... 534 Carbon ... ... ... ... ... ... 4356 Gas ... ... ... ... ... ... 3647 Water ... ... ... ... ... ... 1493 Ash ... ... ... ... ... ... 6-04 Average of Eourteen Samples. Green Lsland — Walton Park Coal Company. Water ... ... ... ... ... ... 2775 Ash ... ... ... ... ... ... 2-8 Eixed Carbon... ... ... ... ... ... 36T6 Volatile hydrocarbon ... ... ... ... ... 333 Coke ... ... ... ... ... ... 38-96

AVERAGE OF THREE SAMPLES.

TRIALS of Colonial Coal for Locomotive Purposes, Dunedin Section, New Zealand Railways.

Name of Coal or Lignite. Specific Gravity. Weight per Cuhic Foot. Cuhic capacity to hold One Ton. .ambton, Newcastle, N.S.W. ... 1-34 83 lbs. lightcap 1-29 80-5 „ laitangata V278 78 lreen Island 1-239 77'3 „ t'alton Park 1236 774 „ 1-34 1-29 1-278 1-239 1236 83 lbs. 80-5 „ 78 „ 77-3 „ 77-1 „ 44'7 cubic feet 46-4 469 515 51-5 „ I have, &c, Alex. Aei W. Conyers, Esq., Eesident and Loco: Commissioner of Eailways, Middle Island, Christchurch. [STRONG, notive Engineer.

Names oi? Coa: Lambton Coal, Newcastle, N.S.W. Walton Park Coal, Otago, N.Z. Kaitangata Coal, Otago, N.Z. Nightcap Coal, Southland, N.Z. Green Island Coal, Otago, N.Z, Number of trials ... Date of trials ... Actual distance out and in Number of tons hauled one mile ... Coal consumed Cost of coal consumed ... Coal consumed per ton of load per mile Cost, of coal per ton hauled Water consumed Water evaporated per lb. of coal ... Steam pressure, mean 2 Jan. 30, 1878 12 m. 34 eh. 2,916 tons 7201b. 9s. 7fd. 0-247 lb. 5 Jan. 31 to Feb. 7 12 m. 34 ch. 7,513 tons 3,770 lb. 19s. 4id. 0-502 lb. 5 Jan. 23 to 29 12 m. 34 ch. 8,462-5 tons 2,948 lb. 15s. 9|-d. 0-348 lb. 4 Feb. 20 to Mar. 7. 12 m. 34 eh. 7,054 tons 3,048 lb. Not ascertained 0-432 lb. 5 Feb. 9 to 14. 12. m. 34 ch. 7,888 tons. 4,033 lb. 22s. Gd. 0511 lb. Temperature of feed water in tank... Injector at work Actual time running Actual time shunting Actual time standing Time away on journeys ... Average speed, exclusive of stoppages Cost per ton of coal 0-039d. 582 gallons 8-08 lb. (34 readings) 1171b. sq.in. 90° mean Faht. 58 min. 18 sec. 1 h. 53'5 min. 2 h. 29 min. 24 min. 4h. 465 min. Not taken 30s. at Dunedin 0-031d. 1,438 gallons 3-81 lb. (112 readings) 1141b. sq. in. 93-6°meanFaht. 2h.8min.30sec. 4h. 495 min. 5 h. 36 mill. 2 h. 51-5 niin. 13 h. 17 min. 14*5 m. per h. lis. 6d. at pit 00224d. 1,332 gallons 4.5 lb. (96 readings) 115-4 lb. sq. in. 92-7°mean Faht. 2h. 3 min. 39 sec. 4 h. 36'5 min. 5 h. 1"5 min. 3 h. 25 min. 13 h. 3 min. Not taken 12s. at Stirling Not known 1,271 gallons 4-17 lb. (101 readings) 115 lb. sq. in. 80° mean. Faht. Not taken 4 h. 21'5 min. 4 h. 31 5 min. 1 h. 14 min. 10 h. 7 min. 13'5 m. per h. Not ascertained 0-034d. 1,443 gallons. 3-58 lb. (130 readings) 118 51b. sq. in. 181*3 mean. Faht. 2h.l5 niin.7sec. 4 h. 45'5 min. 4 h. 58 min. 3 h. 14-5 min. 12 h. 58 min. 14 m. per h. 12s. 6d. at pit. Ai Eesident a: ,EX. Abmsteong, nd Locomotive En ineer.