First lines of the practice of physic, for the use of students, in the University of Edinburgh (Volume 1).

  • William Cullen
Date:
MDCCLXXXI[-MDCCLXXXV] [1781-1785]
Catalogue details

Licence: Public Domain Mark

Credit: First lines of the practice of physic, for the use of students, in the University of Edinburgh (Volume 1). Source: Wellcome Collection.

Provider: This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.)

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    With refpeft to the whole of them, however, it is to be obferved, that, in different cafes, the feveral pheno- mena are in different degrees ; that the feries of them is more or lefs complete ; and that the feveral parts or ftages in the time they occupy, are in a different pro- portion to one another. XXIV. It is very feldom that the difeafe confifts of a fingle paroxyfm, fuch as we have now defcribed ; and it more generally happens, that, after the feries of phenomena mentioned, and after a certain length of time free from them, the fame feries of phenomena again arife, and obferve the fame courfe as before ; and thefe ftates of fever and Apyrexia often continue to alternate with one another for many times. In thefe cafes, the length of time from the end of one paroxyfm to the beginning of another, is called an Intermission, and the length of time from the beginning of one paroxyfm to the be- ginning of another next fucceeding, is called an In- terval. XXV. When the difeafe confifts of a number of paroxyfms, h is generally to be obferved, that the intervals between them are nearly equal ; but thefe intervals are of dif- ferent lengths in different«cafes. The moft ufual in- terval is that of forty-eight hours, which is named the Tertian period. The next moft common is that of feventy-two hours, and is named the Quartan period. Some other intervals alfo are obferved, particularly one of twenty-four hours, named therefore the Quotidian, and this is not infrequent; but all other intervals longer than that of the quartan are extremely rare, and pro- bably are only irregularities of the tertian or quartan periods. XXVI. The paroxyfms of pure intermittent fevers are always finifhed
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