Map shows mid-nineteenth century New Orleans railroads, street names, wards, and canals. Scale not given.

Map shows mid-nineteenth century New Orleans railroads, street names, wards, and canals. Scale not given.

Map shows mid-nineteenth century New Orleans railroads, street names, wards, and canals. Scale not given.

Patent for a new and improved carburetor. This design calls for "the apparatus [to be] submerged in water for the purpose of equalizing the temperature of the carbureting-liquid, and thereby imparting a more uniform illuminating quality to the gas; also obviating the danger of explosion from access of flame to the exterior of the apparatus" (para. 2).

Letter to Orceneth Asbury Fisher from John Matthews explaining his investigation into oculists in New Orleans for Fisher. He also informs of the outbreak of yellow fever in the city.

Patent for improvement in the methods of baling and packing cotton specifically optimizations in the packing and baling of cotton by avoiding all the mechanical appliances used in forming and securing bales of cotton, such as the press, canvas bagging, band, buckles, and bale-ties.

Patent for improved process and apparatus for baling cotton. Improvement relates to a mechanical device by means of which raw cotton is thoroughly compressed into bales suitable for handling.

Patent of an improvement for a carbureter that furnishes the apparatus for enriching the vapors of gasoline or other light hydrocarbon.