The cause and prevention of yellow fever at New Orleans and other cities in America / by E.H. Barton.
- Barton, Edward H.
- Date:
- 1857
Licence: Public Domain Mark
Credit: The cause and prevention of yellow fever at New Orleans and other cities in America / by E.H. Barton. Source: Wellcome Collection.
160/440 page 30
![will be instructive to review tlie-two conditions productive, in combination, of sucb disastrous results, and see bow tbey differ from those of otlier years. K in the appreciation of those at tbe command of science—the causes pointed out do not seem Groat (.oinji;iei]s;|,..itQ witb the results, it^s to be recollected, that it is often proceed . \ii/>'. but yesterday (as it were) these definitive causes have been Irom appa- • j \ / rently iiieigni-*-^*^™^*^P®*^ ^'7 scicutific investigations and applied to human ficant caiLses. maladies, that in the great store house of nature, the mightiest results have been caused by apparently the most insignificant means, and that in no human injirmily can we yet measure the 2orecise amount of cax(,sation. : ... The annual average temjyerature in 1853 has been less by about Climatic pe- two degrees, and this has occured during the rains, it lias been ac- cuiiaritie3 of gQ^^^.e^^ f^^. j^y pj.(jf_ Blodgct by the tropical character of the the year. gcason, the . daily curve of temperature being much less sharp during the rainy season, hence the daily mean of temperature is less than usual, this has been.specially verified here. More rain has fallen than any year during the last thirty excepting a fraction more in 1839.* The barometer has been much higher than any year I have ever noted it, and continued so until some time after the occurrence of the cholera in December. The winds have been nearly one-third more Easterly than during the last five years, and especially during the epidemic; more Northerly—not half the usual Southerly winds, about one-third more of Westerly winds—in tliis respect, what has eminently disti^iguished the season has been the unusual occurrence of calms, or stagnant state of the atmosphere, for the whole year; it has been about four times as many as usual, and^ for August more than eight times as many calms as the average of the last five years. The drying power has been greater for the whole year than usual and especially for December, The radia- tion was materially diff'erent, as is usual, in yellow fever years, the highest amount existed during the yellow feverj (and this is commonly in September,)-j-4his year-the largest mortality oc- * I was not hero in 1P47, being absent in Vera Cruz—more rain is alleged to hav* fuUen then.](https://iiif.wellcomecollection.org/image/b20402521_0160.jp2/full/800%2C/0/default.jpg)
