an autobiography-第69部分

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The　first　occasion　on　which　I　exhibited　my　series　of　drawings　of　the　Moon；　together　with　a　map　six　feet　in　diameter　of　its　entire　visible　surface；　was　at　the　meeting　of　the　British　Association　at　Edinburgh　in　1850。　　I　always　looked　forward　to　these　meetings　with　great　pleasure；　and　attended　them　with　supreme　interest。　　My　dear　wife　always　accompanied　me。　　It　was　our　scientific　holiday。　　It　was　also　our　holiday　of　friendship。　　We　met　many　of　our　old　friends；　and　made　many　new　friends。　　Alas；　how　many　of　them　have　departed！　　Herschel；　Faraday；　Robinson；　Taylor；　Phillips；　Brewster；　Rosse；　Fairbairn；　Lassell；　and　a　host　of　minor　stars；　who；　although　perhaps　wanting　in　the　brightness　or　magnitude　of　those　I　have　named；　made　good　amends　by　the　warmth　of　their　cheerful　rays。　　We　saw　the　younger　lights　emerging　above　the　horizon：　　the　men　who　still　continue　to　shed　their　glory　over　the　meetings　of　the　Association。

How　delightful　was　our　visit　to　Edinburgh　in　1850。　It　was　〃mine　own　romantic　town。〃　　I　remembered　its　striking　features　so　well。　There　was　the　broad　mass　of　the　Old　Town；　with　its　endless　diversity　of　light　and　shade。　　There　was　the　grand　old　fortress；　with　its　towers　and　turrets　and　black　portholes。　　Towards　evening　the　distant　glories　of　the　departing　sun　threw　forward；　in　dark　outline；　the　wooded　hill　of　Corstorphine。　　The　rock　and　Castle　assumed　a　new　aspect　every　time　I　looked　at　them。　　The　long…drawn　gardens　filling　the　valley　between　the　Old　Town　and　the　New；　and　the　thickly…wooded　scars　of　the　Castle　rock；　were　a　charm　of　landscape　and　a　charm　of　art。　　Arthur's　Seat；　like　a　lion　at　rest；　seemed　perfect　witchcraft。　　And　from　the　streets　in　the　New　Town；　or　from　Calton　Hill；　what　singular　glances　of　beauty　were　observed　in　the　distancethe　gleaming　waters　of　the　Firth；　and　the　blue　shadows　among　the　hills　of　Fife。

I　remembered　it　all；　from　the　days　in　which　I　sat；　as　a　child；　beside　the　lassies　watching　the　〃claes〃　on　the　Calton　Hill　and　hearing　the　chimes　of　St。　Giles's　tinkling　across　the　Nor'　Loch　from　the　Old　Town；　the　walks；　when　a　boy；　in　the　picturesque　country　round　Edinburgh；　with　my　father　and　his　scientific　and　artistic　friends；　my　days　at　the　High　School；　and　then　my　evenings　at　the　School　of　Arts；　my　castings　of　brass　in　my　bedroom；　and　the　technical　training　I　enjoyed　in　the　workshop　of　my　old　schoolfellow；　my　roadway　locomotive　and　its　success；　and　finally；　the　making　of　my　tools　and　machines　intended　for　Manchester；　at　the　foundry　of　my　dear　old　friend　Douglass。　　It　all　came　back　to　me　like　a　dream。　　And　now；　after　some　twenty　years；　I　had　returned　to　Edinburgh　on　a　visit　to　the　British　Association。　　Many　things　had　been　changedmany　relatives　and　friends　had　departedbut　still　Edinburgh　remained　to　me　as　fascinating　as　ever。

The　excursions　formed　our　principal　source　of　enjoyment　during　these　scientific　gatherings。　　The　season　was　then　at　its　happiest。　Nature　was　in　her　most　enjoyable　condition；　and　the　excursionists　were　usually　in　their　holiday　mood。　　The　meeting　of　the　British　Association　at　Edinburgh　was　presided　over　by　Sir　David　Brewster。　　The　geologists　visited　the　remarkable　displays　of　volcanic　phenomena　with　which　the　neighbourhood　of　Edinburgh　singularly　abounds。　　Indeed；　Edinburgh　owes　much　of　its　picturesque　beauty　to　volcanoes　and　earthquake　upheavings。　Our　excursions　culminated　in　a　visit　to　the　Bass　Rock。　The　excursion　had　been　carefully　planned；　and　was　successfully　carried　out。　The　day　was　beautiful；　and　the　party　was　of　the　choicest。　After　reaching　the　little　cove　of　Canty　Bay；　overlooked　by　the　gigantic　ruins　of　Tantallon　Castle；　we　were　ferried　across　to　the　Bass；　through　a　few　miles　of　that　capricious　sea；　the　Firth　of　Forth；　near　to　where　it　joins　the　German　Ocean。　　We　were　piloted　by　that　fine　old　British　tar；　Admiral　Malcolm；　while　the　commissariat　was　superintended　by　General　Pasley。

We　were　safely　landed　on　that　magnificent　sea…girt　volcanic　rock　the　Bass。　　After　inspecting　the　ruins　of　what　was　once　a　castellated　State　prison；　where　the　Covenanters　were　immured　for　conscience'　sake；　we　wandered　up　the　hill　towards　the　summit。　　There　we　were　treated　to　a　short　lecture　by　Professor　Owen　on　the　Solan　Goose；　which　was　illustrated　by　the　clouds　of　geese　flying　over　us。　They　freely　exhibited　their　habits　on　land　as　well　as　in　mid…air；　and　skimmed　the　dizzy　crags　with　graceful　and　apparently　effortless　motions。　The　vast　variety　of　seafowl　screamed　their　utmost；　and　gave　a　wonderfully　illustrative　chorus　to　the　lecture。　It　was　a　most　impressive　scene。　　We　were　high　above　the　deep　blue　sea　of　the　German　Ocean；　the　waves　of　which　leapt　up　as　if　they　would　sweep　us　away　into　the　depths　below。

Another　of　our　delightful　excursions　was　made　under　the　guidance　of　my　old　and　dear　friend　Robert　Chambers。*　　＇footnote。。。　I　cannot　pass　over　the　mention　of　Robert　Chambers's　name　without　adding　that　I　was　on　terms　of　the　most　friendly　intimacy　with　him　from　a　very　early　period　of　his　life　to　its　termination　in　1871。　I　remember　when　he　made　his　first　venture　in　business　in　Leith　Walk。　By　virtue　of　his　industry；　ability；　and　energy；　he　became　a　prosperous　man。　　I　had　the　happiness　of　enjoying　his　delightful　and　instructive　society　on　many　occasions。　We　had　rare　cracks　on　all　subjects；　but　especially　respecting　old　places　and　old　characters　whom　we　had　known　at　Edinburgh。　　His　natural　aptitude　to　catch　up　the　salient　and　most　humorous　points　of　character；　with　the　quaint　manner　in　which　he　could　describe　them；　gave　a　vast　charm　to　his　company　and　conversation。　Added　to　which；　the　wide　range　and　accuracy　of　his　information；　acquired　by　his　own　industry　and　quick…witted　penetration；　caused　the　hours　spent　in　his　society　to　remain　among　the　brightest　points　in　my　memory。　　。。。＇

The　object　of　this　excursion　was　to　visit　the　remarkable　series　of　grooved　and　scratched　rocks　which　had　been　discovered*　　＇footnote。。。　They　had　been　first　seen；　some　twenty　years　before；　by　Sir　James　Hall；　one　of　the　geologic　lights　of　Edinburgh。　　。。。＇　on　the　western　edge　of　the　cliff…like　boundary　of　Corstorphine　Hill。　The　glacial　origin　of　these　groovings　on　the　rocks　was　then　occupying　the　attention　of　geologists。　　It　was　a　subject　that　Robert　Chambers　had　carefully　studied；　in　the　Lowlands；　in　the　Highlands；　in　Rhine…land；　in　Switzerland；　and　in　Norway。　　He　had　also　published　his　Ancient　Sea　Margins　and　his　Tracings　of　the　North　of　Europe　in　illustration　of　his　views。　　　He　was　now　enabled　to　show　us　these　groovings　and　scratchings　on　the　rocks　near　Edinburgh。　　In　order　to　render　the　records　more　accessible；　he　had　the　heather　and　mossy　turf　carefully　removed　especially　from　some　of　the　most　distinct　evidences　of　glacial　rock…grooving。　　Thus　no　time　was　lost；　and　we　immediately　saw　the　unquestionable　markings。　　Such　visits　as　these　are　a　thousand　times　more　instructive　and　interesting　than　long　papers　read　at　scientific　meetings。　　They　afford　the　best　opportunity　for　interchange　of　ideas；　and　directly　produce　an　emphatic　result；　for　one　cannot　cavil　about　what　he　has　seen　with　his　eyes　and　felt　with　his　hands。

We　returned　to　the　city　in　time　to　be　present　at　a　most　interesting　lecture　by　Hugh　Miller　on　the　Boulder　Clay。　He　illustrated　it　by　some　scratched　boulders　which　he　had　collected　in　the　neighbourhood　of　Edinburgh。　　He　brought　the　subject　before　his　audience　in　his　own　clear　and　admirable　viva　voce　style。　The　Duke　of　Argyll　was　in　the　chair；　and　a　very　animated　discussion　took　place　on　this　novel　and　difficult　subject。　It　was　humorously　brought　to　a　conclusion　by　the　Rev。　Dr。　Fleming；　a　shrewd　and　learned　geologist。　　Like　many　others；　he　had　encountered　great　difficulties　in　arriving　at　definite　conclusions　on　this　mysterious　subject。　　He　concluded　his　remarks　upon　it　by　describing　the　influence　it　had　in　preventing　his　sleeping　at　night。　He　was　so　restless　on　one　occasion　that　his　wife　became　seriously　alarmed。　〃What's　the　matter　wi'　ye；　John？　are　ye　ill？〃　〃On　no；〃　replied　the　doctor；　〃it's　only　that　confounded　Bounder　Clay！〃　　This　domestic　anecdote　brought　down　the　house；　and　the　meeting　terminated　in　a　loud　and　hearty　laugh。

I；　too；　contributed　my　little　quota　of　information　to　the　members　of　the　British　Association。　　I　had　brought　with　me　from　Lancashire　a　considerable　number　of　my　large　graphic　illustrations　of　the　details　of　the　Moon's　surface。　　I　gave　a　viva　voce　account　of　my　lunar　researches　at　a　crowded　meeting　of　the　Physical　Section　A。　　The　novel　and　interesting　subject　appeared　to　give　so　much　satisfaction　to　the　audience　that　the　Council　of　the　Association　requested　me　to　repeat　the　account　at　one　of　the　special　evenings；　when　the　members　of　all　the　various　sections　were　generally　present。　　It　was　quite　a　new　thing　for　me　to　appear　as　a　public　lecturer；　but　I　consented。　　The　large　hall　of　the　Assembly　Rooms　in　George　Street　was　crowded　with　an　attentive　audience。　　The　Duke　of　Argyll　was　in　the　chair。　　It　is　a　difficult　thing　to　give　a　public　lecture　especially　to　a　scientific　audience。　To　see　a　large　number　of　faces　turned　up；　waiting　for　the　words　of　the　lecturer；　is　a　somewhat　appalling　sight。　　But　the　novelty　of　the　subject　and　the　graphic　illustrations　helped　me　very　much。　　I　was　quite　full