374 



Literary and Philojophical Intelligence. [Nov. 1, 



adhering to each other, but perfectly 

 di(tiii6t ; and oi' which the furfuce is far 

 from bcinp; brilliant. Tiiis fubllaiice is 

 not fo hard as feldfpaih. It is femi- 

 tranfparent, and weighs 2.9S. When 

 cxpofed to tlie at'tion of the blow-pipe, 

 it fwells into a large white mafs, and at 

 laft becoinea converted into a glafs of a 

 pale rofe colour. It dilfolves witliout the 

 :iid of heat in nitric acid, leaving the 

 lilica at the bottom of the velTel. 

 Germany. 



A circuniilance delisrving of the atten- 

 tion of naturalifts recently occurred at 

 the menagerie of SciiiWibruun, near Vi- 

 enna. The male Bengal tiger kept there 

 is ufuiilly fed with i>utchcr's meat ; but 

 being at times fubjctt to a knul of oph- 

 thalmia, he is then provided with young 

 living animals, whofe warm bl(jod contri- 

 butes to his cure. Being in this Itatc, 

 the female w lielp of a butclicr's dog was 

 thrown in to him ; the tiger was ju(l then 

 coucherl with his iicad rcfting on his fore- 

 feet. The whelp recovering from her 

 firll alarm, approached and iiegan to lick 

 his eyes, which was fo agreeable to the 

 tiger, that, forgetting his appetite for 

 Ciu-nage, lie not only fpared the animal, 

 but even tellified his gratitude bycarcfles. 

 The bitch, having entirely overcome her 

 fears, continued to lick jini, and in a 

 few days the tiger was cured. Since that 

 thne the two animals have lived in per- 

 fect triendlhip; before he toi\ches liis 

 food, the tiger alwiiys waits till his com- 

 panion has fatisfied iicrfelf with the dain- 

 tieft morfcls. lie puts up with every 

 thing from her, ;md even when ilic bites 

 him in i)lay, he ihew-s no refentnient, but 

 is continually careffing her. 



Never were fuel) pains taken as within 

 thcle few years to vary the number of 

 mufical inftruments. An artill of Prague, 

 named IIoi.isein, has invented one, to 

 which he has given the name of JJravi- 

 kon. One of its properties is to fwell 

 the founds progrellively from pianiflimo 

 to fortiffuuo, and virevajii. This iufiru- ■ 

 mcnt likewife produces the found of a 

 horn, the echo of which fccms to rever- 

 berate- in the mountains; and the iida^io 

 is fung, ad libilum, by one of the fweet- 

 ell female v'oiccs. 



At a late meeting of tlie Academv of 

 Sciences at Munich, M. Baadeu exhi- 

 bited the mode! of a machine of his in- 

 Tcntion, whicii he denonniuitcs Ilydro- 

 metrograph, and wliich has ali-eadv been 

 tried on a large fcale at tlic falt-works of 

 Kcichcnhall. By means of Uiis machine, 



the meafure of any quantity of water 

 tJiat has palled tlirougli a pipe of certain 

 dimenilons is determined and marked in 

 cubic feet. 



A literary notice, at the fame capital, 

 propofes the publication of an engraving 

 of a bird, which has never been metho- 

 dically defcribcd by any naturalift, and 

 w hich is mentioned for the hrft time in the 

 fecond volume of Gmelin'sNatural Hilb iry. 

 Tills bird, which is truly a curiofit)', lias 

 four forts of wings, or rather a \ery thick 

 collar of feathers, which he fprcads over 

 his back when it rains in the manner 

 of an umbrella. The editors of the fame 

 M'ork promifc a defcription of fever;il 

 other original fpecics, which cannot fail to 

 prove interefting to brnithologili:s. 



At a meeting of the Academy of ufe- 

 ful Sciences at Krfurt, M. BiJcnxEU read 

 a memoir on inoculation for the natural 

 fmall-pox, and on the refult of the lirlt 

 vaccination at Bergen in Norway. lie 

 gives a circumltantiai account of the lat- 

 ter, and dates a remarkable cafe whicli 

 fell vjnder his obi'crvation in the pcrfoiin- 

 ance of his mcdicid duty. He ^^as lent 

 for to a child a ye.'ir old, belonging to 

 (Captain Paafchc, who tonunanded a 

 lliip, and was abfent at the time on a 

 \oyage to France. The mother imagined 

 that the fymptoms of the diforder pro- 

 ceeded from dentition ; but M. Biichner 

 foon difcovered all thofe that ufually at- 

 tend the natural fmall-pox. Before its 

 eruption, he feveral times endeavoured, 

 but in vain, to prevail on the mother to 

 have her other two children vaccinated. 

 The next day the eruption app'^arcd, the 

 fmall-pox became nialignant, and on the 

 iixth day the child die(i. The difconfo- 

 late mother then repaired to the phyli- 

 cian, imploiing him to lave her two . re- 

 maining children, lie rcfolNcd to vacci- 

 nate them, after a fuitable preparation. 

 He directed them both to be. removed to 

 the molt difiant apartment in the lioul'c, 

 to be put into a warm iiarh, to be well 

 rubbed, and all the clothes ilioy l);id lie- 

 fore worn to l)c changed. The vaccina- 

 tion was fucrefsful ; the puntlures be- 

 came inliamed, the eruption took jilacc 

 at the pn)])cr time, and the tumours ap- 

 proaclicd to perfect nuiturity. But after 

 the eighth day, tiic tvxo children had a 

 vcryreltlefs iiiglit; they felt a.-. inclinaM(«i 

 to von)it.]icad-ache, in Ihort, all the fymp- 

 toms which ufually ])recedc the natural 

 iir.all-pox. The next day the eruption 

 of the latter actually took place, and the 

 Lollies of the two ciiildrcu were covered 



will* 



