THE CIVIL ENGINEER AND ARCHITECT'S JOURNAL. 



209 



1842.] 



Lecture, on Architecture, mth reference to >\^P'^P%±j;'^'Xuth 

 Music Hall. By Joseph Hansom, Architect. London. Barth, 



184'' . 



M, Himom erected the Town Hall at Birmingham, which is 82 



there rcupyi' vvhole width 150 feet ; it will ascend >nto a slope and 

 toan°ltit.de which the designer compares to thatofthes.de of a 

 llUftSrable steepness a%d magnitude manned w.U> an army <^f 

 ^.wiriins ■"'500 sineers and performers. The Hall is to oe capao.e 

 Tc ntti, ing 8000 pf rsons, and even in case of need 15,01.0 ; the pr.ce 

 of the orgal which is to be the largest in the world, is included in the 

 est mate o £30,000. The roof Mr. Hansom proposes to construct on 

 the nr nciplfof the suspension bridge, from the four corners of the 

 bulging The voof to be of iron, and to weigh 200 tons. The height 

 he savs s less than that of the cathedral of Amiens, which is HO feet, 

 of Beauvais which is IGO, and of Cologne, Milan, Strasburg and others. 

 He furtlie offers for £1000 to build 1 model Hall as large as Exeter 

 Sal "and observes that Exeter Hall is engaged every evening dlbep- 

 tember except Saturday, at twentv-five guineas per night. Mi. Han 

 som ;iomiserwonders, but he hasdone so well hitherto that we must 

 not distrust his success for the future. 



A Hand Book of Ornamental Mapp,ns<xnd Engineering ^3«^; 



No. 3. By Benjamn P. Wilms, C.E. and Surveyor. London: 



Weale, 1842. 



Mr. Wilme perseveres in his labours. In the present number, one 

 of fhe pU tes affords delineations of the several classes o timber, other 

 various sgns used in mapping, and also the method of showing strata 

 In sect onr«"d likewise the method of delineating mountains. 



F<r.i Mdii^onal Suppler^entlo theEncyclop..d^aof Cottage Farm and 

 Villa Architecture and Furniture. By J. C. LotrooN, b.L.S., ivc. 

 London: Longman and Co. 1812. 



Mr. Loudon's indefatigable exertions in the cause of making archi- 

 tecture popular, has induced him to continue his Encyclopedia by 

 Lfv nL oSonallv supplementary numbers, by which means he will 

 ie able to coUec -"ogether a vast variety of useful domestic improve- 

 ment not only in the construction of buildings, but also in the tittings 

 Tnd furnUure The part before us fully testifies the utility of such a 

 work; it ^fuU of wood engravings of cottages, villas, inns, schools, 



&c. 



OBiTU^RY.-It is With regret that we have to record the death of Mr 

 Samue7seaward, who died on the 11th ult. He was one of the partners of 

 the firm of Ms rs. John and Samuel Seaward and Capel, of the Canal Iron 

 Works Limehouse, a member of the Royal Society, and an indefa igah e 

 member o the Institution of Civil Engineers. He devoted grea attention to 

 toe construction of the st.am engine, and was the patentee of several im- 

 provemfntsand author of a vari^'ety of papers read before the Institution of 

 CivU Engineers, on a comparison of long and short stroke engines, auK.har> 

 steam power applied to saihng ships, &c. 



STEAM NAVIGATION. 



THE STEAM SHIP - LITTLE WESTERN." 



c,„_Uv„ureperuse the article on this vessel, inserted in your excellent 

 Jou nil for-the present month. 1 have no duubl you wd! agree with me that 

 ft comains an assertion which is not borne out by the rest o the ar ,cle . 

 and 1 tl nk that the writer, in m.Uing a public statement to her pre|ud.ce 

 o L„n,l in fairness to state ihc groiin. s on which it was based. 1 allude 

 To l^e oUo "ng P esrion ■ " tl.aftliere is anything either in the struc.ure 

 ,?nhl hull or machinery pre-eminently e.Kcellent we utterly deny. In the 

 ^[oduclion.tthrvessel, there appears'to have been too great a strainmg 

 ?f,prnoveh a d ihere are evide.'c-esof a .lisposition to select arrangements, 

 noTso nulch by 'l>'^ ''>"-^i''^™""'' "'' ^^''^' '^ excellent as o. what ,s un- 

 "'l known, t whether so strong an expression as th^.t which forms the first pari 

 of the above extract was c,dl?d for: 1 can only say that I have ma.le se a 

 .,i,l,mCav,l the vessel, an.l have thus bad many opporlumtiesot seeing and 

 coi'^versing with sev-eral gentlemen interested i., her. and 1 never heard .them 



hmst nf her excellence in ex ignerate;! terms ; they merely expressed their con- 

 filnl. o her suroassinK Ih? Heme Bay and Gravesend boats, and. as tar as 



thPDier at Heme Bay about twenty minutes after ihe Cty of P™ ff yy. 

 the pitr at "" ^. f.rt.vp,.,„l which shows her speed to have exceeded that 

 :? hTu er' es^e" inThe "tlo o^ ab„ut 8 to 7. /t the Nore, the (>™.« was 

 nnite out of sight, and we passed her with great ease near \V oolwich if 1 re- 

 eo lect H t So the best of my observation, the distance from (jravesend to 

 ri>r kwaU was nerformed in five or ten minutes less tune than by the Rail- 

 1 ,7 hit boat was too far a-head to allow of any certainly in the ob- 

 re'va'on 0.1 afornier'?.ccasion. 1 have l.een informed, the IM,I. We.ter. 



™"™^£b™v?;t I'^M^'n^i-:^ f;!;:r v\a;;;;':^Uo? ^:^ 



TaSl y a eoid:nuive w?sheJ, or might probtbly have been enabled to 



l^m?eite had I had the aivantage of seeing Mr. Morgan himselt, irom 



XTedes^gns'^nd under whose inspection th? vessel and machinery were 



^Witirre-ard to the second portion of the above extract 1 have committed 

 » itb re^aru to tnt i ^^ ^^^^ spirited and enteri.nsmg 



fi';iTf°kerat^an Morgan and Co, by whom the LMle Wester, was pro,luoed 

 1 should tellad if yoirwould lavour'ihem with insertion in your lorthcoming 



number. , , ^j , ,^ alluded to had never 



^VtherCes at' vo I. « fwo dd no? have expressed himself so doubt- 

 seen the e"Smes a w orK. ' ^ave been led to assign undue im- 

 fully on the subjec « ''^ /'j; ^^^^^ existence may indeed be indicated by 

 jKirtance to «" f:^^';^^^"/^ ^f 7, ^„re closely'foUowed up, must have 

 theory, but «hich t he same t e n inappreciable influence on the result. 



^';:r^:tt;a^!^X^ofairbeneathth^p^^ 



end by bringing up t' :^J i= f^ '.i'';'p;,^ViTc" P^^^^ of maintaining it at that 

 to the ^l';e'-^f.f}";tin' a i the "iectTon and' condensation water, as well as 

 degree, by discharging al' 'be miec no ^^^^^ observe, 



the air involved, during <^^^h revolution ott.e era ^^ ^^^^ 



that the vacuum ^^ ^^^^J^'^f'X^^orl^^e^^^^^^^ as 1 can make 



t=;^^^^-^^-Tsr:^r' I be- 



,ie?e'';he\X"alX':\i:v;it^efareCs,m^u"eo''f the ludl and the hori- 

 '.TnmlVsi.-n of the cvhnders as applie to beam engn . ^^^.^^^^ 



strnction -h'ch was des.gned b > ^ M lUiam M ^„^ ^^ ^^^^^^ ^^^^ ^^^ 



cannot therefore be said to "a^^ "een ,„,suai." Such an assertion 



siderationofwhat IS excelent,a ofwhat IS um^^^^^^ ^^^ ^^^ ^^^ 



would '"1?"'^"° ^'"S '^l^^^l^^u w ° es el t^r sale on a novel principle of 

 whatmaninhisseies would but la^ ^.^^^^ ^^ ^^^^^ ^^,.^,^ ^^^^ 



'Zt7{::Zlf2lXlZLis .or considering .he innovation as a sub- 



stantial improvement? ,•„„„:,;„„ of the engines be attributed to so 



Neither can the I?"" 't^fllP°^rcUarly sLwn?^^ material ad- 



ing the piston rod pass through a f^'"" "S;b°>. O^'n .^ ^,^^ ,^^„ 



J.^1 'S:i^:S^^^:^^^^^'^^^ -w proceed to con- 



known, and have been previous y t^ised ^V seyra " « .,„„°,,., ,i„ee the 



gineeis, though, for my own P"^ ^'''^"^SX ctionVrom 'the furnaces 

 (lame I'asses directly through them n a ernc^^ ^^^^^^^ ^^^ ^.^^^^ 



to the lunne by which I apP/''^ ' " ^'-^i/,''' ,„ ,|ie patentee would have 

 Western's hollers are, '"'« ev • ""'^h^ .| r'iaion of Mr. Spiller's chief assist- 



made them, and "■'■.'■e "J-.^J^^^^Ven v otl^lv ai.prove^d. The steam and 

 ant, by « bom the <lfa«'"S^ 'a' ote i i ^^^ _^ ^^ ^^.^^_.^ ,^^,^ 



eJuctiou valves, being balanced re uireerm^ i ;_^^^„^,^„i^„„ ^^ 



;es. being balanm. qu.r -^n,... ... ,^^ -.eonvenience be 



than the slide valve gene all) t.^d. a' '-^ya^^ .^^ j,^^^,^., i ,„,, 

 made very 'arge; t e J^^.«/t < ..^<.r .^.^^ paddle-« heels are 



Mr^,'s';^';:nlld thiuluperiority over ill o'thcrs has been successful y 

 testJd by twelve or thirteen years' experience. 



