...The peninsula is composed almost wholly of a bed of coraline and porous limestone covered with a layer of thin, dry soil formed from the slow weathering of the bedrock... 
Erwin E. Klaas 「Summer Birds From the Yucatan Peninsula」
...Here there is a complete absence of the porous envelope, althoughthe nest is exposed to the weather, like the previous examples, affixedto some twig or fragment of rock...
J. H. Fabre Bernard Miall 「Social Life in the Insect World」
...The material through which the probe has to penetrate is not a porous substance; it is homogeneous and compact, like our hardened cement...
J. Henri Fabre Alexander Teixeira de Mattos 「The Mason-bees」
...So these bricks, being of thislight and porous quality, and admitting no moisture into their texture,must by the laws of nature float in water, like pumice, no matter whattheir weight may be...
Vitruvius 「Ten Books on Architecture」
...Lime made of close-grained stone ofthe harder sort will be good in structural parts; lime of porous stone,in stucco...
Vitruvius 「Ten Books on Architecture」
...But as soon as the moisture is sucked out of themortar by the porous rubble, and the lime and sand separate anddisunite, the rubble can no longer adhere to them and the wall will intime become a ruin...
Vitruvius 「Ten Books on Architecture」
...This is because the lime, having had itsmoisture burned out in the kiln, becomes porous and loses its strength,and its dryness makes it take up anything that may come in contact withit...
Vitruvius 「Ten Books on Architecture」
...Formerly thissurface usually, if not always, received a priming coat, and it doesso still where the surface is coarse, uneven, rough, and porous...
William N. Brown 「Handbook on Japanning: 2nd Edition」
...The trees seemed huge and spindly, a porous growth somethingon the Martian style, with huge leaves and a tangle of matter vines...
Raymond King Cummings 「Wandl the Invader」
...'As for theMayor, he's a sausage-shaped porous plaster,' and he gave him a sharppinch in the leg...
Norman Lindsay 「The Magic Pudding」
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