LIB. IT. 43. 275 



parum croci etiam dolium aqua? colore inficiat ; quod 

 parum zibethi aut aromatis longe majus contentum 

 aeris odore ; quod exiguo suffitu tanta excitetur nubes 

 fumi ; quod sonorum tarn accurate differentiae, quales 

 sint voces articulatse, per aerem undequaque vehantur, 

 atque per foramina et poros etiam ligni et aquae (licet 

 admodum extenuatac) penetrent, quin etiam repercuti- 

 antur, idque tarn distincte et velociter ; quod lux et 

 color, etiam tanto ambitu et tarn perniciter, per cor 

 pora solida vitri, aqua?, et cum tanta et tarn exquisita 

 varietate imaginum permeent, etiam refringantur et 

 reflectantur ; quod in agues per corpora omnigena, 

 etiam maxime compacta, operetur : sed (quod magis 

 mirum est) quod in his omnibus, in medio adiaplioro 

 (quale est ae r) unius actio aliam non magnopere impe- 

 diat ; nempe, quod eodem tempore per spatia aeris 

 devehantur et visibilium tot imagines 53 ; et vocis arti- 

 culata? tot percussiones ; et tot odores specificati, ut 

 violac, rosac ; etiam calor et frigus ; et virtutes magne- 

 ticae ; omnia (inquam) simul, uno alterum non impe- 

 diente ; ac si singula habcrent vias et meatus suos 

 proprios separates, neque unum in alterum impingeret 

 aut incurreret. 



Solemus tamen utiliter hujusmodi instantiis perse- 

 cantibus subjungere instantias, quas mctas persecationis 

 appellare consuevimus : veluti quod in iis, qua? dixi- 

 mus, una actio in diverso genere aliam non perturbet 



this Vermiculus in the skin a living distinct from the structure of its 



creature. Such is not the case. It parts. This is a striking collection 



is caused by the obstruction of the of examples, suggestive, but with- 



fountains or glands placed imme- out any order. 



diately under the skin, from which This refers to the Theory of 



a minute pipe carries off the per- Vision, which tried to account for 



spiration. Cf. supra, II. 34. By its phenomena by films thrown off. 



&quot; figuram dissimilarem partium,&quot; I See Herschel s Discourse, 273. 

 suppose, is meant a general figure 



T 2 



