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De - Starodruki

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4 H<br />

TRACT ATU S XVII. S Е С Т Т О ГГ.<br />

Wis, ejusdem terræ vifc с rib a s inclufis, atqj, cam fummo impetu cnm -<br />

pere contendentibus. Ii enim dum ѵіаш, qui prodeant non inveniunt,<br />

retrof-eruntur, iA fe revolvuntur, tumultuantur. Ptaeter exhalationes, five<br />

fpiritus nitri, fulphuris, bituminis, inclufàs cavernis, ventus aliquan-<br />

do non partun confcrre dicitur ad terra: motum, cavitatibus le infuii-<br />

dendo, ac fie îllapüm latera quatiendo. Opinionc aliorum fubterranei<br />

ignés feu fornaces fubterraneæ plus iolito accenfæ, majoris pabuli irru-<br />

ptione, funt caufa motuum terræ, maxime fi non adfint crebra fpiracu-<br />

la, per quæ erumpat fubterraneus ille æftus. Primo, obnoxiæ magis mo-<br />

tibus his terræ fpongiofæ, & cavernoCt., quia halitus facillimè intra fe<br />

recipiunt: fecundo montofæ, quia plerumq; exiftunt cavæ: tertio tnari-<br />

timæ, quia mare quafi fiftulis quibusdam terrain fubingrediens,eam ex*<br />

cavat, in qua deinde plurimi halitus generantur. Agitationibus violen-<br />

tis fubjećta minus loca meridionalia & calida, propter folem calore fuo<br />

( poris terræ referatis ) exhalationes facile diiïipantem. Septentrionales<br />

& frigidæ regiones, quia (okdiorera naćhc ex frigore terrain, ideoq; minus<br />

fungofam Ôi porofam, paueiores admittunt fpiritus. In arenofis tra-<br />

ftibus, id elt, firmiter non compaćtis, exhalationes fine vi fènfim efflari<br />

polfunt. Limo quoq; pori terræ obftrućti halitus paucos recipiunt.<br />

Univerià terra nequaquam concuti potcfl, inclufi enim cavernis fpiritus<br />

ad movendam machmam tantam proportionatis viribus defhtuuntur.<br />

Duratio fuccufsûs varia eft} ratione foli potentiùs, vel debiliùs refiften-<br />

tis, facilem aut diflicilem exitum flatrbus permittentis, vel deniq; fpiri-<br />

tuum nunc copioforum, nunc paudorum. Signa terræ motus ftituri hæc<br />

affigtiantur,fi nulla præcedente caufa,aqua puteorum turbemr,odores rétros<br />

exfpiret : fi eadem putealis aqua ebulliat & afeendat, fi mate fine<br />

flatu repente intumefeat: fi intempeftiva fit tranquillitas àéris: fi audiatur<br />

telluris fonus & mugitus : fi fubterranea animalia relinquant fua la-<br />

tibula &CC.<br />

II. TERRÆ M OTUS, quos regiones aliæ frequenter usq; ad<br />

ruinam internecionem Civitatum, vicorum, fcifTuram Alpium patiuntur,<br />

nifi perraro & quafi tempore prodigiofo funt in Polonia. Dlugos-<br />

sus H iß. Pol. 1. i. Polonia an. юоо. multis prodigiis, dc in primis<br />

terræ

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