0190 £)e Generaiione Lapidum^ 



^micum cavum invenerim, qui omni materia adventitia & infi- 

 titia, intus reclufa, caruerit. Invemri tamen globulos lapi- 

 ^deos cavos inanes , licet rariffime , Au£tores perhibent a). 

 rFormatio globuli^ ejusque fornicis cavitatem recludentis^effer- 

 -.vefcentiae •> repletio vero cavitatis aljis caufis sdfqribencU .eft. 



ji) Invenerunt globulas inancs cjusmodi in cavitate fua nil continen- 



tes, Baiervs, in Oryfliogv. Norica p. 32. & Wallerivs in Mi- 



neralog. p. 513. Edit. ^erm. Huc pertinet Lapis bufonius ha> 



mifph;cricus intus cavjus Lesseri in LithotheoJog. Lib. V. Se<£l. III. 



Cap. III. §. 309. b p.509, & Lapis concavuf fcrrei colcrif infer- 



rivena repertus ;, in quo nihil nifi acr continetpr , Jd. Kent- 



; #ianni in Npinenclat.ura^reruin foffil. Tit. V, p. 3 f . Woqdwar» 



on attempt towards a natural Kiftory of Folfils P. L T. I. p. 51. 



Anorbicular grey Flint- Thefe,flinty fchetlf are pretty frtquent- 



;ly found. Tbeir caviticf are fometimef empty f fbmetimef fiW d 



Xvitb Gbalk , and fomctimcf xoith a fomeXvbat harder tyhite 



Body. Conf. Bruckmanni Thefaur* fubterr. Puc. Ikunfvic. Tab» 



VII.fig.VI,X. 



|. XXXI. 



Globuli lapidei caviprtgnantes funt, qui in cavitate fua ma- 

 rteriam vel hpmogeneam , *vel heterogeneam , vel utramcrue fi- 

 xnul cpmple£tuntur. ForrLiatio ejusrnodi globuli praegnantis a 

 pluribus qaufis dependet. XJlobulumipfum r feu ejus fornicem, 

 ventrem, imcem .conftituitjeffervefcentia.: quae autem in qa* 

 vitate ejusmoQi globuli.recondita & depofita inveniuntur, va- 

 poribus, jexhalationibus , effluviis, irrigationi v filtrationi& in- 

 je&ioni aguarum a) y uterum horum globulorum per poros in= 

 'trantium, earundemque ibidem ftagnationi , fermentationi f 

 praecipitationi.&depofitioni particularum tenerrimarum, quas 

 fecum yexerant , terrearum 5 quarzofarum , arenacearum , 

 margacearum, calcariarum^oleofarum, falinarum & reliqua- 

 mm; tandemque earundem coh8efioni r coalitioni , coagulatio- 

 ni, mafiseque reclufae exficcationi 7 accepta referenda funj* 

 Rem exemplis illuftrabo, 



d) Quar- 



