Page:Herschel - A Preliminary Discourse on the Study of Natural Philosophy (1831).djvu/68

From Wikisource
Jump to navigation Jump to search
This page has been proofread, but needs to be validated.
54
DISCOURSE ON THE STUDY

strengthened the sinews of our most powerful arm, and obliterated one of the darkest features in the most glorious of all professions.

(45.) These last, however, are instances of simple observation, limited to the point immediately in view, and assuming only so far the character of science as a systematic adoption of good and rejection of evil, when grounded on experience carefully weighed, justly entitle it to do. They are not on that account less appositely cited as instances of the importance

    manageable for want of hands, and the commander was obliged to send men on board to take in their sails and hoist out their boats. (Purchas's Pilgrim, vol. i. p. 149.) A Fellow of the college, and an eminent practitioner, in 1753 published a tract on sea scurvy, in which he adverts to the superior virtue of this medicine; and Mr. A. Baird, surgeon of the Hector sloop of war, states, that from what he had seen of its effects on board of that ship, he "thinks he shall not be accused of presumption in pronouncing it, if properly administered, a most infallible remedy, both in the cure and prevention of scurvy." (Vide Trotter's Medicina Nautica.) The precautions adopted by captain Cook in his celebrated voyages, had fully demonstrated by their complete success the practicability of keeping scurvy under in the longest voyages, but a uniform system of prevention throughout the service was still deficient.

    It is to the representations of Dr. Blair and sir Gilbert Blane, in their capacity of commissioners of the board for sick and wounded seamen, in 1795, we believe, that its systematic introduction into nautical diet, by a general order of the admiralty, is owing. The effect of this wise measure (taken, of course, in conjunction with the general causes of improved health,) may be estimated from the following facts:—In 1780, the number of cases of scurvy received into Haslar hospital was 1457; in 1806 one only, and in 1807 one. There are now many surgeons in the navy who have never seen the disease.