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Show I I20 ] nucleus of the earth ejctled from the fun; was the fun originally a planet? fuppofed feCl:ion of the globe. NoTE xxv ..... EvAPORATION. 1. Solution of water in air; in the matter of heat ; pulf~-glafs. ~. Heat is_ the principal caufe of evaporation ; thermometer cooled .by evaporatton of ether; heat given from fteam to the worm-tub; warmth accompanying rain. 3· Steam co~denfed on the eduC\:ion of heat; moiflure on cold walls; fouth-wefl: and north-eafl: wmds. 4· S~!t~tion of falt and of blue vitriol in the matter of heat. II. Other ~'\pours may prccipi-tate nu e;tm an d t.o rm ram· . 1 . Cold the principal caufe of devap.o rauon ; . hence the fl:eam diffolved in heat is precipitated, but that dillolved in air rem.ams even m fr~fl:s; fouthwefl wind. ~. North-ea{l winds mixing with fouth-wefl: wmds produce ram; becaufc h ld · 1 f · of the north-eafl: acquire fume of the matter of heat from the t e co partie es o air . . . . . fouth-wefl: winds. 3. Devaporation 'from mechamcal expanfion of a1r, as m the re~e1ve1 of an air-pump; fummer clouds appear and vanifh .; when the baromet~r finks ~1tho~t change of wind the weather becomes colder. 4· Solution of water m eletl:nc flu~u dubious. 5. Barometer finks from the leffenea gravity of the air, and from th~ ram having lefs preffure as it falls; a mixture of a fulution of :Vater ~n calorique w1th an aerial folution of water is lighter than dry air; breath of ammals m cold weather why condenfed into vifiblc vapour and diffolved again. NoTE XXVI.. ... SPRINGi. LowEST flrata of the earth appear on the highefl: hills; fprings from dews fliding between them; mountains are colder than plains; I. from their being infulated in the air; 2. from their enlarged furface; 3· from the rarety of the air it becom~s a better conduCl.or of heat; 4· by the air on mountains being mechanically rarefied as 1t afcends; 5. gravitation of the matter of heat; 6. the dafl1ing of clouds againfl: hills i of fogs againfl: trees ; fprings fl:ronger in hot days with cold nights; fl:reams from fubterranean .~averns; from beneath the fnow on the Alps. NoTE XXVII.. ... SHELL-FrsH. THE armour of the Echinus moveable; holds itfclf in fiorms to flones by 1200 or 2ooo firings: Nautilus rows and fails; renders its {hell buoyant: Pinna and Cancer; Byffus of the antients was the beard of the Pinna; as fine as the filk is fpun by the filk worm; gloves made of it; the beard of mufcles .Produces ficknefs; · Indian weed ; tendon.s of ·rats tails. NoTE XXVIII. .... STuRGEON. STURGEON's mouth like a purfe; without teeth; tendrils like worms hang before his lips, which entice fmall fifh and fea infects mifl:aking them for worms; his fki" 1fed .for covering carriages; ifin.gbfs made from it; caviare from the fpawn. • [ I2I J NoTE XXIX ..... OIL ON WATER. <?IL and water d? n~t touch; a fecond drop of oil will not ditfufe itfelf on the precedmg one; henc~ It fi~lls the waves~ divers for pearl carry oil in their ITlllluths; oil on water produces pnfmatic colours; o1led cork circulates on water; a phial of oil and water made to ofcillate. NoTE xxx ..... SHrP-WoRM. TH~ Ter~d~ has calcareous jaws; a new enemy; they perilh when they meet together m the1r ligneous canals; United Provinces alarmed for the piles of the banks of Zeland; were defl:roycd by a fevere winter. Non XXXI. .... MAELSTROM. A :-"HIRLPOOL on the coafl: of Norway; paffes through a fubterraneous cavity; lefs vwlent when the tide is up; eddies become hollow in the middle; heavy bodies are thrown out by eddies; light ones retained; oil and water TVhirled in a phial ; hurricanes explained. Non XXXII ..... GLACIERs. SNow in contaCt with the earth is in a fl:ate of thaw; ice-houfes; rivers from beneath the: fnow; rime in fpring vanilhes by its contaCt with the ea;th; and fnow by its evaporation and contatl: with the earth; mofs vegetates beneath the fnow; and Alpine plants pcrilh at Upfal for want of fnow. NoTE XXXIII.. ... WINns. AIR is perpetually fubjetl: to increafe and to diminution; Oxygene is perpetually produced from vegetables in the fun rhine, and from clouds in the light, and from water; Azote is perpetually produced from animal and vegetable putrefaCl.ion, or combufl:ion; from fprings uf water ; volatile alcali; fixed ale ali; fea- water; they are both perpetually diminilhed by their contaCt with the foil, producing nitre; Oxygene is diminif11cd in the production of all acids; Azote by the growth of animal bodies; charcoal in buming confumes double its weight of pure air; every barrel of red-lead abforbe~ 2ooo cubic feet of vital air; air obtained from variety of fubfl:ances by Dr. Pricfl:ley; Olncinaaeris in the polar circle, and at the Line. South-wifl winds; their wdterly diretl:ion from the lefs velocity of the earth's fur face; the contrary in refpetl: to north-eafl: winds; Southwefl: winds confift of regions of air from the fouth; and north-calt winds of regions of air from the north; when the fouth-wc:ll: prevails for weeks and the barometer finks to 28, what becomes of above one fifteenth part of the atmofpherc? r. It is not carried back by fuperior currents; 2. Not from its lofs of moill:urc; 3· Not carried over the pole; 4· Not owing to atmofpheric tides or mountains; 5· It is abforbed at the polar circle; hence fouth-wefl: winds and rain; fouth-well: fometimes cold. Nortb.ea.fi winds confi!l: of air from the north; cold by the evaporation of ice; are dry winds; 1. Not fup- |
