Another very important branch of liberal arts, and very well developed, was that of photography.  Very remarkable works of the most expert photographers of the country were exhibited.

In the Department of Manufactures the industrial concerns from Mexico were represented as follows:  The cotton and woolen mills, which have greatly developed in the Republic; the leather and shoe industry was well demonstrated by a number of factories which exhibited their products; there were also shown a number of samples from the manufacture of furniture and decorating fixtures for buildings and residences.

Full information about the railroad lines, general railroad map, and great number of photographs of the most important points on the lines, plaster models of the Tehuantepec Railroad connecting the two oceans, and statistical information of the railroad development were exhibited in the Transportation Building.  Models of light-houses and original light-houses that will be used in the Vera Cruz Harbor were displayed also, as well as models of the harbors of Mazanillo, Salina, Curz, Coatzacoalcos, and Tampico.  Tools, bags, scales, etc., used in the mail service, and statistical information of the development of the service were shown, as were carriages, harness, saddles, and all kinds of implements used for driving and riding.

The war department had a general display of educational methods used in the military and naval academies, and maps, military library, improvements invented by some member of the army and samples of materials made by its factories.

In the Electricity Building were maps and reports of the most important electrical installations of the country.

In the Machinery Hall were displayed machines made in the factories of the army for the manufacture of cartridges, and antiscaling substance.

Among the Mexican exhibits at St. Louis, the largest number was in the Agricultural Building, where the display occupied over 900 square feet of space.  The exhibits made by the three leading breweries of Mexico was noticeable as to elegance and artistic good taste.  Great importance was attached to the exhibits of leaf and manufactured tobacco.  The coffee exhibit attracted general attention.

The exhibit of fibers, especially that of Henequen, from Yucatan, was very important and complete, the last named being the cause of flourishing trade with the United States.  The exhibit of sugar showed the great resources of Mexico in this product.  A splendid exhibit of Mexican vanila attracted the attention of all visitors.  The exhibit of agronomical maps by the Mexican Commission was of much scientific value, and the collection of insects and injurious parasitical plants was also worthy of attention.