Inquiry into the nature and cause of miasmata, more particularly illustrated in the former and present state of the Campagna di Roma / P. Murphy.

  • Murphy, Patrick, 1782-1847.
Date:
1825
Catalogue details

Licence: Public Domain Mark

Credit: Inquiry into the nature and cause of miasmata, more particularly illustrated in the former and present state of the Campagna di Roma / P. Murphy. Source: Wellcome Collection.

Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.

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    ignition in the phenomena of the atmosphere is always the effect of a compression or condensation of its volume; and that the meteoric condensation is ordinarily circumscribed in its range to that portion of the atmosphere, where the inflammable gaseous matter of its superior region commences, and the ordinary atmospheric air of its inferior region terminates, when its body is harmonious in the ad- justment of its parts. It will likewise follow, as ca- loric is the base of the meteoric condensation, just as it is of the aqueous, that the more abundant it is in the superior region of the atmosphere the more rapid will be the progress of this condensation, and consequently the more numerous and vivid the ex- plosions it will give birth to. This, I believe, will be found in accordance with the history of these phenomena; and I have never seen so numerous and beautiful a display of them as at Naples, during the autumn of 1823, particularly when the heats were greatest. They were of different shades and bril- liancy, from the most vivid silvery white to depths of tint approaching to a fiery glow: the former in general glancing horizontally; the latter shooting obliquely downwards. •9Vom bsnidmoo iio«3 .ixtyA) moil eiobsosi niia oJiaoqqo saedi \o aoitomib siajsa etii ui laom -naoaoo b gaiauBo yd .oiarfqaomlu odi ui aalqbnhq suoaafig ofdfimfflBftfir bus ohohso adi to aoileni -db \liu3io3iu?. Uiw taorg3T lohoquR aii \o idJJfiin t&dim in ,anoauoa o&odt is noijcnnot oil! lot invo>