l.>-. 



^ji)U^ jQio A large and fine fiiecimen oF Mytilus Plicatus, 5. a frefli water fhell, from 

 China, each valve having a row of fix pearls, all furnilhcd with (talks, ex- 

 plaining an artifice made ufe of by the Chinefe, in aflifting nature in the for- ' ' ' 

 mation of pearls, by faftening knobbed wires on the infide of the Ihell, while 

 . " . the animal was living, which was afterwards replaced in the river, or other — ". ^ 

 place it was originally in, and in procefs of time, coated the wires over with 



; »^ the pearly fubftance of its fliell. 



•"^^ 3911 A Clufter ofBalanus Tulipa, Elliu Fhilofoph. Trajis.f.g. 10, partly over-run by 



a Gorgonia pretiofa, Dcry curious and rarr, from Sicily 

 ^^^Ayyy>^i'>'^'->-^*p^ 3.912 A very large and fine Afterias Cnput Medufse, L. from Archangel, very rare — 



^^jL.j^^^^:^'^ 39^3 A capital fpecimen of Valuta ImperiaUs, S. or Great horned Wild Muiic, frcm- ^ ^ — 



Litconia, extremely J'carce.— Martin, vol. III. 934, 935'. v A 



CURIOUS O-RES, CRYSTALS, kc. 



i-' 'Xu*f*p/»>^ 5914 A fine fpecimen of cryftallized Antimony, from Auvcrgne in France, v:>y / • 2. 



^ j rare . .•' . 



J. , ^gi^ Part of a Brazilian pebble Cryftal, reflefting prifmatic colour?, very lean tiful . - 



'^■^"^^^'^'p^ n-i^ 391^ A fine Marcaiitical Copper Ore, richly coloured, one fide polillied, from fej??, <<' ■■ 



rare _^ / . //. 



3917 A Drufen of hoiiow pyramidal Quartz; its cavernous property funpofec to &e 



owing to a dccompofitlon of fomc catceiou^ lubitancc, ovcrr, l:ch it had y ^ 



^ formed, from Hungary ' " ■ ' 



• - ^ • / 7 



i 3918 A rich fpecimen ot Native gold, in Quartz, fiom Pc-.t — — ~' 



3919 An elegant fpecimen of llellared cffiorefccKCe of Cob .1% rvF a beautiful pink 



, coloui:,^from ^//Aze/tfrj-, Saxony, rare, inclofcd in- a neat glals cafe * ^ 



A*n 3920 A group of Quartz Cryllils, with Spiculie of black flrivl within, and a curious 



plated Iron Ore, with Terra Ponderofa, from Ccmvall, hofh rare 



/• plated Iron Ore, with Terra Ponderoia, ivo\r\ Ccr?n.vall, both rare ' " 



^ 3921 A mofl beautiful and rich fpecimen of crylhllizcd hmellated Native Gok?, with ■ , ^ 

 ^ ' Lead Ore, Quartz, Cryilais, &c, froni Bmza,. in Tranfyhanla, I'ery rare 



* '''^^^t^T^^n^ 3922 A very fine fpecimen of Pluniofe White Vltrol of Tron, i-ery jl-arce, f\oir. 

 / Hungary 



d7 



Uncommon PETRIFACTIONS, SHELLS, MADRE- 

 PORES, &c. 



d-L^'^^y^ 2923 The famous cryftaliized Echinites of Mr. Baker,, defcribed in the Phiiofoj)hicai____ /O - ^ O - 

 I Tranf.idtions, Nu. 482. 



vT^^iyin^A/^-i^T^j^ 3924 A large and finely coloured fpecimen of Helix L^ndata, an undcTcrlbcd fpecies, t ^ , 



^ of Land Snail, from whence \.\\\\ncs\\'n.—~Fa-vanhe, pL6^, fg. G. 3. 



^"^^Uti^ 7-2/1^ 3925 Avery large and fine fpecimen of a curious variety of Bladrcpoia Muricata, I , ^. 



inclofed in a glafscafe, with r.iahogany frame and back 

 li^ i-^tfvi 3926 A large and fine fpecimen of Valuta Nolilis, S. an extremely rare, and very C 

 beautiful Ihellofthe Wild Mufic kind, from Ckina.-^L'ftcr, 799. !.\ — Man:.:' 

 ///. 774' 



