his, lost the opportunity of taking part in the battle of Buena Vista.
After the war he returned to his native State.
A convention was soon after called to revise the Constitution of Kentucky.
He was a candidate for a seat in that body, and was beaten, because he was strongly in favor of reviving his old favorite, the law against the importation of slaves into the State, which had been repealed and which he desired to incorporate into the Constitution as part of the fundamental law.
In 1850 the question of the adoption or rejection of the new Constitution was to be submitted to the people.
Some of the most talented men in the State arrayed themselves against its adoption.
Among these was Mr. Marshall.
As editor of a newspaper published at Frankfort, called the Old Guard, he came into the battle champing like a war steed, his whole armor on, impatient to measure strength with the most dauntless champions of the new Constitution.
In a series of leading editorials, addressed To
ote his first scientific paper on this subject, and it was published soon after his return by the American Journal of Science. Shortly after, he wrote another much-talked — of paper entitled The Relation of Terrestrial Magnetism to the Circulation of the Atmosphere.
These small beginnings he soon expanded into his celebrated wind and current charts and sailing directions.
These charts completely revolutionized commerce, said the Secretaries of the Navy (in their annual reports for the years 1850, 1851, 1852, 1853, 1854, 1855 and 1856), and have not only saved millions of dollars to those who go down to the sea in ships, but have added glory and honor to his country.
A calculation of the amount saved to the commerce of the United States by shortening the voyages fifteen days by the use of these charts will show the following startling results: The average freight from the United States to Rio is 17.7 cents per ton per day; to Australia 20 cents. The mean of this is a little over 19 c