On Malaria, 59 



similarly depraved, I prefer a reference to Montfalcon for a 

 picture which it would not be very agreeable to transcribe. 



As to the absolute or positive diseases, besides those which 

 I have already named, 1 need scarcely say that remittent and 

 intermittent fevers, under endless varieties and types, form the 

 great mass; and next in order to them, may be placed dysen- 

 tery and cholera, together with diarrhoea. To these I must 

 also add, those painful diseases of the nerves, of which sciatica 

 stands foremost, and the remainder of which may be ranked 

 under the general term of neuralgia ; and further, a consider- 

 able number of inflammatory diseases of a more or less remit- 

 tent type, among which rheumatism under various forms is 

 the most general, and the intermittent ophthalmia the most 

 remarkable. Lastly, I must include the various paralytic 

 affections ; since apoplexy is one of the primary and direct 

 consequences of malaria, as various paralytic affections are the 

 produce of intermittent, or the consequences of the diseases of 

 the nerves which are associated with it. 



It is still a curious and interesting fact, that this poison 

 affects, in an analogous manner, many different animals, and 

 appears, in reality, to be the cause of all the noted endemics 

 and remarkable epidemics which occur in the agricultural 

 animals in particular. This has been noticed even by Livy: 

 and in France and Italy it is equally familiar that the severe 

 seasons of fever among the people are similarly seasons of 

 epidemics to black-cattle and sheep, while the symptoms are 

 as nearly the same as they could be in the circumstances, and 

 the appearances on dissection also correspond. Thus also 

 does it appear probable, that the rot in sheep is actually the 

 produce of malaria, as is indeed the received opinion among 

 French veterinarians; while Mr. Royston has observed that 

 the animals of this class are subject to distinct intermittents. 



And while it is not less familiar in the West Indies, and in 

 Dominica particularly, that dogs suffer from a mortal fever in 

 the same seasons and periods as the people, the epidemic 

 always breaking out in them first, I have the most unexcep- 

 tionable medical evidence of the occurrence of a regular and- 

 well-marked tertian in a dog; that evidence consisting in the 

 concurring decision of many surgeons, by whom the case was 



