4i8 



THE CIVIL ENGINEER AND ARCHITECT'S JOURNAL. 



within a fow "lays, a couple oftoats being suflicient (o cover it, as tlie cement 

 is noi "I 'hat absorbent character as stucco or n-man cement. 



The cost of the -lAi cement is lis. per cttt.,an<l for covering a yard super- 

 ficial of brick-work, ii ref|Uircs 7 lbs. of cement, and 21 lbs. of sand, or 4 lbs. 

 of cement, and 12 lbs. if sand, if laid on a coat of plastering, or 1 cwt. of 

 cement will lake one bi^shel of sand, and cover H yaids. The prime cost, 

 including labour, is about Is. 6d. per square yaid, whicli is a low price, con- 

 siderinK the excellent qualities of the maleijal, and thit it does not require 

 colouring. We strongly recommend the archiiccl to give the cement a fair 

 trial. Some specimens may be seen at the ofljce of the Journal. 



THE ARTESIAN WELL XT CRENELLE, PARIS. 

 We have at various times given an account of this well, the first descrip- 

 tion of the labours of M. Mulot, up to the time of his accomplishing the 

 objects in obtaining water, appeared in the Jo^nm/ for April IS41, p. 131. 

 vol. 4 : r.nd in the Journal for the following July, we gave a farther account, 

 explaining the size of the tubes, and the geological character of the strata 

 through which the boring passed. All the reports that have recently ap- 

 peared in ditferent publications i early correspond wiih our rrpi rls, and the 

 engraviis- lately published in I'aris, showing tlie strata does not differ much 

 form our description, but it gives the strata more minutely, which we now 

 give m a tabular form. It «iil be perceived that the form.ation is identical 

 with that of the London Basin below the London Clay. 



Depth 

 in ft. 



13. 



STR.\TA. 



Gravel and Sand 



180. 



328. 



886. 

 1049. 

 1453. 



1C34, 





1794. 



Cockle Shells 



Quartoze Sand with fine particles of sulphuret of 



iron 

 Pine Sand 

 Argillaceous Sand 

 Mottled Clay 

 Sand and Clay with nodules of Limestone 



White Chalk with layers of flints 



White Chalk alternating with stata of dolomite 

 and small pieces of silex 



Gray chalk with small particles of silex 



Gray Chalk, compact without silex 



Green Chalk and green particles of the silicate 



of iron 

 Blue argillaceous Chalk 

 Bine argillaceous and sandy chalk, with particles 



of mica, and veins of green chalk 



Clay with iron pyrites, nodules of the phosphate 



of lime and fossil debris 

 Gaecn Sand 



Clay and Greenish Sand with grains of quartz 

 Argillaceous Sand 

 Green and White Sand 



Water 



Formation. 



Plastic Clay. 



White Chalk. 



Gray Chalk. 



Chalk Marl. 



Gaiilt. 



[December, 



, coal, and other combustible 



lion to promote the ignition ami comhuslion of coke 



s'tbstHnccs. in stoves. I'ltrnnrcs, nnil grates.'' — Nov. 5. . , , . 



William Colkv Jones, of Vauxhail-walk. Lnmbeth, practical chemist, for 

 " improevmcnts in treating or operating upon a certain unclimis substance, in 

 order to obtain products therefrom for the muniifacture of candles, and other 

 purposes.*' — Nov. 8. , -, . 



PiEHBE I-'rt-debick IsGOLn, of Bucliinghaui-place, HaDOVcr-square, w.itch- 

 maker. for " im/jrouenicn^s in machineri/ for making parts of uiatckes and other 

 time-keepers. — Nov. 8. , ^ • 



Aktiivr Hakvib, of Wilmington-squ-.re, genieman. for " improvements iit 

 tlie process of vinous fermentation." (A Ciiramunicati. n.)— Nov. b. 



Thomas WttiGi.EV, ol Vjiidgc Hall. Bury, I^ncaster,__pa;'_pr manu'acturcr, 

 for ■' iinprnvemints in machimn/ for manufacturing paper. ' — Nov. 8. 



John Mitchell, of Birmingham, s eel pen manufscturer, for " n» improve- 

 ment ill the manufacture nf metuilic pens, and an improvement in tlie tnaniifacture 

 of pen.liolilers.—iiuv. 8. „ ,„ , , r , 



Joii.N .Si'iNKS, the younger, of John-street, Bedford-row, gentleman, for-' an 

 improved apparatus Jor giving clasticiti/ to certain parts of railway and other car- 

 riages reiiniriv^ the same.'' — Nov. 8. 



llrNKiK Zantjer, of Norlh-street, Sloanc-street. engineer, for '• im/jroir- 

 ments in steam-engine boilers and furnaces, and in the methods nf feeding and 

 u-urking llie same ; as also in the machinery for a])}>lyiiig steam power to pro- 

 pelling purposes." — Nov. 8. , . , t i 



John Bap.ni s, of Church. Lancashire, manufacturing chemist, ani John 

 Mercer, of O.ikenshaw, Lancashire, calico printer, for "improvements in the 

 mnniifiel lire of articles used inprinting anddyeing cotton, silk, woollen, and other 

 fabrics." — Nov. 10. , , <■ 



CiiAK-LEs UowLEv and James Turner, of Birmingham, bill Ion-makers, for 

 ■' improecnicnts in the rnanufactnre nf perforated metal buttons." — Nov. 15. 



Andre Eustache Gratien Algi-.ste M.-vckras, of Cornhill. genlleman, 

 for '■ imprnrenients in the process and apparatus for filtering water and other 

 liquids." (Partly a coninuinic.ition.)— Nov. 1.5. 



Charles .'i^mith. of Newcastle-street, Slrand, for '■improvements in the ma- 

 nufacture and application of bricks, tiles, and other plastic articles or surfaces, 

 and fur cements or compositions to be used with, in, and about the same, for build- 

 ing and other useful purposes.'' — Nov. 17. 



LIST OF KEVW PATENTS. 



CBANTID IV ENGLAND FROM NOVEMBER 2nD TO NOVDMIIER l/TH, 1842. 



Six Months allowed fur Enrolment, unless otherwise cxpresstd. 



MATTHEW Gbeoson, of Tosteth Park, Liverpool, esquire, for " impruveinenls 

 amlienhlo to the sawing or cutting of veneers. (A communication.)— .Sealed 

 November 2. , , - , 



.losf.i'ii EnwABPS. of Bloomsbury-square. clerk, for '• «'j improved raxor- 

 slrirp. or instrument for shrirprning certain cutting edges, and an improved material 

 for covering the same, tehich material is also applicable to other purposes' — 



Nov. 2. , . , „ X- o 



.Sir J. SroTi Lillie. of Chelsea, for " improvements in roads. — Mov. I. 



Pierre Pkllitan, ol Bedlord -square, esquire, for " improvements in thepro- 

 duclionnflight."—'i<uv.2 , , , . • , 



James BcLLOiiiii, of Blackburn, overlooker, for "improvements in the '-ou- 

 strurlion of looms for wealing.' (A communication J— Nov. 3. 



RuHABn Bkvan, of Liverpool, wine-merchant, for " nrrangements connected 

 with the circulation of steam employed in pipes or tubes for producing lieat, and 

 the application of such arrangements to various purposes." — Nov 0. 



John Rotiiwell, ol Great Bolton, grocer, for "a composition and prepara- 



misceZjiX.ahi:a. 



The Cormorant Steam Frigate.— On the 23i-d ultimo Her Majesty's second 

 class steam frigate Cormorant, having been fitted with a pair of engines of 

 300 H.P., by Messrs. Fairbairn and Co., was tried down the river from M'ool- 

 wich, under the charge of one of the Admiralty pilots. This was the first 

 trip made by the Cormorant, and the government engineers on board were so 

 fully satisfied with the working of the engines and the results obtained from 

 them, that lliey at once ordered her to proceed to .Sheernoss, where she will 

 be got ready immediately to be put in commission. The diameter of the 

 cylinders is 651 in., and the length of the stroke 3 ft. 3 in. The average 

 number of strokes during the trial was 21S, the boilers generating an ample 

 ■supply of steam. The draught of W'ater of the vessel was 12 ft. 2 in. aft, 

 and lU ft. 'il in. forward, the guns and armament not being yet on board. 

 The speed tfirough slill water, according to the trials made at the measured 

 distance, was 11 miles an hiur; but greater speed Hill be attained when the 

 paddle wheels have more held of the water. The same makers are now con- 

 structing a pair of engines of -170 ii,p. for Uer Majesty's first class frigate 

 Vulture, building at Pembroke. In the Journal lor next nionih we hope to be 

 able to give the drawings of these engines. 



Jberyslwifth Jlarhour. — The works of the pier are left closed for this 

 season (e.-;<'epting a few jobs). There is now completed of the new jiier, 261 

 lineal yards, leaving only 39 vards for completion. The body of the work 

 is composed of stone, from 1' to 14 Ions, in rough blocks, and filled in with 

 rubble stone. The sra slope is pitched, and grouted, with thf best Aberlhaw 

 lime mortar ; and a quantity of large blocks ot .stone are placed at foot of 

 sea slojies, for i!s proteciion. The inner walling is composed of very heavy 

 stones, set and grouted willi the same mortar. The p.aiv.pel wall is 8 ft. 

 ;'bove the top oi the pier, and of immense thickness. Tlie stones forming 

 its coping, weigh from 4 to 1 1 tons each, and are a'so grouted and set with 

 the same mortar. The height of pier is about 32 ft., from foumlalion to top 

 of coping, being 12 ft. abo^e ordinary spring tides: the widili on tup 40 ft., 

 Ibe sea slope has an inclination of 3 to 1. There is also fi.\e,I a pow- 

 erful capstan and mooring posts; landing steps are built in the inner 

 walling. A convenient storm room is also erected in the parapet, for ropes, 

 fee, lor use of vessels. The pier as far as is completed, has been ilie meaiis 

 of saving life, aad an immense quantit.i of property ; as well as the facili- 

 tating of vessels, in their ingress and egress. 



THE VARIATION OF THE COMPASS. 



Observations made at the Royal Observatory, Greenwich, 



G. B. .\ibv. Astronomer Royal. 



Mean Magnetic Declination for the month of August, 1842 — 23° 15' 10" 



The observations of the .Magnetic Dip are suspended, when they are resumed 

 the results will be recorded as usual. 



