Relatively unchanged from an era of long ago, Coahuila and Zacatecas Railroad's train No. 2, northbound, headed by Engine No. 6, a Pacific type 4-6-2 coal-fired steam locomotive with a consist of four cars, is backing into the depot at Concepcion del Oro, in the state of Zacatecas. The train has reversed direction on the wye at this southern terminal in the days of the great copper mines owned and operated by the Mazapol Copper Company, Ltd. Soon it will depart on its run over the narrow gauge rails to the northern terminus of the line in Saltillo, capitol city of the state of Coahuila, Mexico in February 1948.

The purpose of the study is to make a survey and analysis of the export trade of the United States with Mexico. Attention is given to the kinds and types of goods exported to Mexico and imported from it, to the value of the trade, to some ways of carrying it on, and to aspects of Mexican life that influence trade relations.

From abstract: Many small deposits of optical calcite (Iceland spar) were discovered in the States of Chihuahua, Durango, Sonora, and Sinaloa from early in 1942 to late in 1944. Exploration that began in Sonora led to the discovery of commercial deposits in the eastern part of that State, and subsequently other deposits were found and mined in southwestern and northeastern Chihuahua and in western and central Durango. The largest deposits can be reached by foot or by horse in from 1 to 3 hours from the nearest truck roads, but some of the small deposits are 1 to 3 days by horse from the nearest roads.

From abstract: The Talamantes district, 20 kilometers east of Parral in southern Chihuahua, has been the second largest producer of manganese ore in Mexico. Production, which started during World War I and has been more or less continuous since 1930, has totaled about 50,000 tons of ore with an average manganese content of 40 or 41 percent. The mines are on the Mesa de Talamantes, which is underlain by folded Cretaceous (?) limestone, overlain unconformably by gently dipping Tertiary rhyolite flows and tuff, volcanic breccia, agglomerate, and tuffaceous sandstone. Steeply dipping normal faults of northerly trend cut the rock and divide the mesa into a series of blocks.

Letter from I. H. Kempner to Col. Harry E. Stewart discussing Stewart assisting with finding employment for a man named Stanislas Bleyberg, who Kempner has taken an interest in due to the hardships of the man and his family.

Letter from Iva Pond to I. H. Kempner informing Kempner that Colonel Harry E. Stewart is visiting with Mr. and Mrs. Axel Wenner Gren and won't be back in Mexico until mid-May but assures Kempner that the letter he sent will be given to Stewart upon his return.

Letter from I. H. Kempner to Col. Harry E. Stewart asking Stewart to assist in finding a job in Mexico for a Mr. Stanislas Bleyberg, who had been a prisoner in a concentration camp and is now looking to secure a visa to Mexico by obtaining a job in the country.

Annual journal of the Texas Archeological and Paleontological Society documenting research and findings of members as well as activities of the organization.

Letter from Thos. L. James to D. W. Kempner discussing multiple happenings in Sugar Land ranging from cattle sales, operations concerning cotton, dehydrating plants, and the Plantersville Gin, land sales, and bank payments.

Letter from Goodrich, Dalton & Little to H. Kempner regarding a reference inquiry for A. H. Bleyberg.

The Texas State Historical Association Quarterly Report includes "Papers read at the meetings of the Association, and such other contributions as may be accepted by the Committee" (volume 1, number 1). These include historical sketches, biographical material, personal accounts, and other research. Index is located at the end of the volume starting on page 385.

Letter from Isaac H. Kempner to Daniel W. Kempner discussing the potential cause and remedies for the shipment of Mexican cotton to Belgium.

Letter from Isaac H. Kempner to Daniel W. Kempner discussing the appearance of Mexican cotton in shipments to Belgium, issues with the dehydrating plant and other business in Sugar Land, Fanny Hamburger's return to the United States, and the Marshall Plan.

Letter from Harris Leon Kempner to Daniel W. Kempner discussing problems with business in Europe and the possibility of hiring a continental agent. He also proposes shipping the GIRC 1,000 bales of 1-1/32 cotton with certain stipulations. There are handwritten notes from Daniel W. Kempner responding to the letter.

Letter from I. H. Kempner to Col. Harry E. Stewart asking Stewart to assist with finding Doctor Bleyberg a temporary permit to stay in Mexico until he can find a permanent residence.

Letter from Colonel H. E. Stewart to Harris Kempner assuring Kempner that he will do whatever he can to assist Kempner's friends, who are attempting to stay in Mexico permanently.

Letter from Isaac Herbert Kempner to The Stewart Company attaching a letter of introduction. And if Colonel Stewart is not in Dallas, he requests them to hold it for him.