IS-16.] 



THE CIVIL ENGINEER AND ARCHITECTS JOURNAL. 



49 



arrangements have been entered into with tendilTerent contractors. There 

 is considerable diBiculty in procuring stone of good quality in a suliicieiit 

 quantity ; and even were these stones obliged to be delivered in all at 

 once according to given dimensions, the due succession would not be 

 always observed, as the quarry-men work out the material only as it can 

 be procured to best advantage from the rock. 



At a previous meeting of the Committee, the following order of the 

 King of Prussia was read : — 



" I have received the report of the Central Restoration Society's opera- 

 tions during the last three years, transmitted to me the 2nd of last nionlh, 

 and have taken cognizance of its contents with true satisfaction, l-'mm 

 it I perceive with pleasure the constantly growing synipatliy for the 

 grand object of the Society in most of the provinces of Ciermany, and am 

 much graiilied in recognising the credit which the Society's Committee 

 lias gained itself by its wise and strenuous conduct of the concerns en- 

 trusted to its care. The judicious administration and application of the 

 resources placed at its disposal are sufficiently attested by the perform- 

 ances of the Society during the short period of lis existence. These fully 

 answer every reasonable expectation, and justify a still higher confidence 

 iu the successful prosecution of this sacred and noble work. To promote 

 this success to the utmost of my power and with undiminished interest, 

 forms one of the objects to which my life will be devoted." 



Frederick AVilliam. 



Siinsnuci, Sepl. I, 1845 

 To the Central Society for the Restoration of Cologne Cathedral. 

 The total receipts of the Society amount to about 22,130i. 



BROAD AND NARROW GAUGE EXPERIMENTS. 



We are indebted for the following particulars of the experiments made 

 before the G'uHg-f Commissioners to the Morning Herald, at present the 

 oliicial account has not been published.* 



Broad Gauge Experiments. 



started from 



PaddiDgton 



First mile post 



WestLondon crossing rly 



Ealing 



Hpnuell 



Soulhall 



West Drayton 



Sloui;li 



Maidenhead 



Tirj-lord 



Reattine 



Paugboitrne 



Goring 



Wallin^ford Road 



Didcot 



Total time on tlie road. . 



First Day. 



First Trip. 

 8 Carriages of 10 

 tons each, 81 tons 

 13 cwt. gross wht. 

 exclusive of en. 

 gine and tender. 



Second Trip. 



Carriages of 10 

 tons each, 71 tons 

 gross weight ex 

 elusive of engine 

 and tender. 



Down, 

 a.m. 

 h. m. 



9 68J 

 10 2i 

 10 (ii 

 10 U 

 111 13 

 10 143 

 10 20 

 10 25^ 

 10 30i 

 10 40 

 10 46 

 10 521 



10 56^ 



11 

 11 64 



1 4 



Up. 



1 43 



1 2i 



12 5:i 



12 .V 

 12 .i5i 



12 oOi 



13 44i 

 12 40 

 12 31 

 12 26 

 12 20 

 12 16 

 12 13 

 12 4i 



1 li 



With 6 carriages 

 and gross weight 

 60 tons exclusive 

 of engine and ten- 

 der. 



Down, 

 a.m. 

 h. m. 



2 4i 

 2 8! 

 2 12" 

 2 16 

 2 13 

 2 20* 

 2 2.ij 

 2 .-ll" 

 2 36 

 2 46i 

 2 52 



2 5SJ 



3 2i 

 3 6 

 3 12 



1 3i 



Up. 

 a.m. 

 h. m. 



4 51 

 4 50 

 4 47 

 4 4.'! 

 4 4oJ 

 4 3LI 

 4 .14 

 4 2Ui 

 4 2IJ 

 4 16 

 4 10 

 4 6 

 •14 



3 54i 



56i 



Second Day. 



Down, 

 a.m. 

 b. m. 



10 24 

 10 6i 

 10 

 10 14 

 10 16i 

 10 17* 

 10 22i 

 10 274 

 10 32 

 10 4:'i 

 10 46 

 10 52 



10 65J 

 111 59* 



11 5" 



1 2i 



Up. 



a.m. 



h. m. 



1 4 

 1 

 12 50 

 12 56 

 12 .54i 

 12 62 

 12 474 

 12 42J 

 12 38 

 12 20 

 12 24 

 12 20 

 12 15 

 12 Hi 

 12 3 



60 



Gradients. 



From i to 21 rise 3 feet per mile. 



21 .. 7i „ 4 ilitto. 



"1 .. OJ „ 4 ditto. 



OS .. Ill} level, 



lol . . l:- J fall 4 feet per mile. 



12J .. 15* level. 



15* .. 171 ^all 4 feet per mile. 



171 • • 20 rise 2 teet per mile. 



From 20 to 23 rise 4 feet per mile. 

 23 .. 325 „ ditto. 



32S .. 36Jfall ditto. 



364 .. 42 Tlie ditto. 



42 .. 43 levl. 



43 ..44 rise 2 MOth per mile. 



44 ..63 rise 4 feet pel mile. 



On Saturday morning, January 10, two more experimental trips were 

 made on the broad gauge (the Great Western Railway) in the presence 

 of the Gauge Commissioners; the weather was rather unfavourable, the 

 morning being dull and damp, and very little wind stirring until the after- 

 noon. The Hercules was again selected for the purpose ; it is a powerful 

 engine, having connected wheels 5 feet in diameter, cylinder l(j inches, 

 stroke 18 inches, and weighs 22 tons. At 7h. 52m. 24s. she started from 

 the one mile post, Paddington, with a train of 13 trucks, coal-laden, an 

 additional tender, and a first class carriage, which was occupied by Sir F. 

 Smith, Professor Barlow, Mr. Watson, Mr. Saunders, secretary to the 

 company, Mr. Harmer, and Mr. Gibson; on the engine were Mv. Firunel, 

 engineer of the line, and Mr. Gooch, superintendent of the locomotive de- 



* The first experiments were made in the midfile of December last on the Great 

 Western Railway. The Hercules locomotive engine was selected for the purpose. 



parlment. This experimental train was driven from Paddington to Did- 

 cot, a distance of 62J miles, where it arrived at lOh. 19m. 38s. having made 

 stoppages at Ealing, Soulhall, West Drayton, Slough, iNIaidenhead, Twy- 

 ford, aud Goring. For the exact time of arrival and departure from the 

 several stations the reporter has been indebted to Mr. Seymour Clarke, 

 the principal superintendent of the line, and it is as follows : — 



The distance was accomplished in 2h. 27m. 14s., or at a rate of2Q'75 miles 

 an hour. The weight of train propelled, exclusive of the engine, was 204 

 tons 18 cwt. 1 qr. 31b. Soon after the arrival of this tr^iin at Didcot.the 

 Ixion, a powerful passenger engine, having driving wheels 7 feet in dia- 

 meter, came up with a train of 15 trucks, laden witli coal, to be attached 

 to the train of the Hercules, making in all 28 trucks aud one first class 

 carriage. After all matters were arranged this leviaihian train proceeded 

 on its journey ; its weight, length, and the time it passed the different sta- 

 tions, are given from the same authority as that of tlie down trip : — weight 

 400 tons, 3 cwt. 1 qr. 10 lb. ; length of train, 232 yards. 



Performing the journey in 2h. 10m. 45s., at an average rate of speed of 23 

 miles an hour. 



The duration of this trip was 54 minutes, seconds, which shows a 

 speed of upwards of 47J miles per hour. The mnxinium rate, betweeu 

 the 18th aud 191b mile-posts, was somewhat above 54 miles per hour. 



Narrow Gacge Experiments. 



The experiments for testing the tractive capacity of the narrow-gauge 

 engine commenced on the 30tli Dec. last, upon the Great North of Eng- 

 land line, between York and Darlington. The distance run was that be- 

 tween ihe first and forty-fourth mile-posts— viz. 43 miles. This piece of 

 railway has been selected in consequence of its being nearly a direct line 

 throughout its whole course, and from the very easy character of its gra- 

 dients. The en-ine selecte<l is a new one, recently constructed, made at 

 tlie celebrated locomotive establishment of Mr. Robert Stephenson. She 

 had been running for about a week only, and had not made any except 

 experimeutal trips. Her performances were considered to be so good 

 mat she was fixer! upon as the champiou for the narrow-gauge interests. 

 Slie is a six-«bi el engiue, with outside cylinders; has feet inches 

 driving wheels, and the top of her boiler is about 7 feet 4 inches from the 

 rails. 



The hour fixed for the starting of the train was nine o'clock. There 

 were present to witness the experiment Professor Barlow, Professor 

 Airy (two of the gauge commissioners) ; Mr. Watson, the secretary to the 

 commission; Mr. G. Hudson, M.P. ; INIr. Richardson, the mayor of York; 

 Mr. Brunei; Mr. C. A. Saunders, the secretary of the Great Western 

 company ; Mr. Gooch, superinlendent of the locomotive aepartment in the 

 same company; Mr. Bidder; Mr. Cabry, the engineer of the York and 

 North Midland ; Mr. Harrison, the engineer of the Great North of Eng- 

 land ; Mr. W.Stevenson, of the Great Western Company; Mr. Wynd- 

 ham Harding; Mr. Berkeley of Mr. Robert Stephenson's establishment, 

 and several other scientific gentlemen. 



The weight of the train was 50 tons only, and that of the engine and 

 tender together about 23 tons. The weights of the experimental trains 



