air by the lapse of time: as they perish away they dry up or become earth,Joakim Nordstrom Tröjor. But the kind of secretion we are concerned with now differs from others in that it is not moist nor does it become wind (which is a continuous flow of air in a given direction). Fumes are common secretion of dry and moist together caused by the agency of burning heat. Hence they do not moisten things but rather colour them.
The fumes of a woody body are called smoke. (I mean to include bones and hair and everything of this kind in the same class. For there is no name common to all the objects that I mean, but,Evander Kane Tröjor, for all that, these things are all in the same class by analogy. Compare what Empedocles says: They are one and the same, hair and leaves and the thick wings of birds and scales that grow on stout limbs.) The fumes of fat are a sooty smoke and those of oily substances a greasy steam. Oil does not boil away or thicken by evaporation because it does not give off vapour but fumes. Water on the other hand does not give off fumes,Josh Gorges Tröjor, but vapour. Sweet wine does give off fumes, for it contains fat and behaves like oil. It does not solidify under the influence of cold and it is apt to burn. Really it is not wine at all in spite of its name: for it does not taste like wine and consequently does not inebriate as ordinary wine does. It contains but little fumigable stuff and consequently is inflammable.
All bodies are combustible that dissolve into ashes,CG Dame Solaris Parka, and all bodies do this that solidify under the influence either of heat or of both heat and cold; for we find that all these bodies are mastered by fire. Of stones the precious stone called carbuncle is least amenable to fire.
Of combustible bodies some are inflammable and some are not,Patrice Bergeron Tröjor, and some of the former are reduced to coals. Those are called ‘inflammable’ which produce flame and those which do not are called ‘non-inflammable’. Those fumigable bodies that are not liquid are inflammable,Brooks Laich Tröjor, but pitch,Ralph Lauren Ned Västar, oil,Alec Martinez Tröjor, wax are inflammable in conjunction with other bodies rather than by themselves. Most inflammable are those bodies that give off smoke. Of bodies of this kind those that contain more earth than smoke are apt to be reduced to coals. Some bodies that can be melted are not inflammable,Ty Rattie Tröjor, e.g. copper; and some bodies that cannot be melted are inflammable,Grant Fuhr Tröjor, e.g. wood; and some bodies can be melted and are also inflammable,Alex Goligoski Tröjor, e.g. frankincense. The reason is that wood has its moisture all together and this is continuous throughout and so it burns up: whereas copper has it in each part but not continuous, and insufficient in quantity to give rise to flame. In frankincense it is disposed in both of these ways. Fumigable bodies are inflammable when earth predominates in them and they are consequently such as to be unable to melt. These are inflammable because they are dry like fire. When this dry comes to be hot there is fire. This is why flame is burning smoke or dry exhalation. The fumes of wood are smoke,Kyle Brodziak Tröjor, those of wax and frankincense and such-like, and pitch and whatever contains pitch or such-li
相关的主题文章：
http://www.matsue-yado.com/otoku/clip.cgi
http://www.blackborder.com/cgi-bin/common/index.cgi
http://www.ticovision.com/cgi-bin/index.cgi |
