The Confederate government encouraged the building and extension of railroads, and paid large sums to them for the transportation of troops, munitions of war, and military supplies.[375] Several lines of road within the state were made military roads, and the government extended their lines, built bridges and cars, and kept the lines in repair.[376] In 1862 $150,000 was advanced to the Alabama and Mississippi Railway Company, to complete the line between Selma and Meridian,[377] and the duty on iron needed for the road was remitted.[378] On June 25 of this year this road was seized by the military authorities in order to finish it,[379] and because of the lack of iron D. H. Kenny was directed (July 21, 1863) to impress the iron and rolling stock belonging to the Alabama and Florida Railway, the Gainesville Branch of the Mobile and Ohio, the Cahaba, Marion, and Greensborough Railroad, and the Uniontown and Newberne Railroad. The Alabama and Mississippi road was a very important line, since it tapped the supply districts of Mississippi and the Black Belt of Alabama. There were many difficulties in the way of the builders. In 1862 the locomotives were wearing out and no iron was to be obtained. In the fall of the same year the planters withdrew their negroes who were working on the road, and left the bridges half finished. But finally, in December, 1862, the road was completed.[380] In the fall of 1862 a road between Blue Mountain, Alabama, and Rome, Georgia, was planned, and $1,122,480.92 was appropriated by the Confederate Congress, a mortgage being taken as security.[381] This road was graded and some bridges built and iron laid, but was not in running order before the end of the war. Telegraph lines, which had been few before the war, were now placed along each railroad, and several cross-country lines were put up. The first important new line was along the Mobile and Ohio Railroad, from Mobile to Meridian.[382] Private Manufacturing Enterprises Both the state and the Confederate government encouraged manufactures by favorable legislation. The Confederate government was always ready to advance half of the cost of the machinery and to take goods in payment. A law of Alabama in 1861 secured the rights of inventors and authors. All patents under the United States laws prior to January 11, 1861, were to hold good under the state laws, and the United States patent and copyright laws were adopted for Alabama.[383] Later, jurisdiction over patents, inventions, and copyrights was transferred to the Confederate government. A bonus of five and ten cents apiece on all cotton and wool cards made in Alabama was offered by the legislature in December, 1861.[384] All employees in iron mills, in foundries, and in factories supplying the state or Confederate governments with arms, clothing, cloth, and the like were declared by the state exempt from military duty.