Letter from D. W. Kempner to Henry A. Dreer, Inc., stating that upon receipt, send Kempner one Gridiron Bird Feeders and 3 extra suet cakes.

Report issued by the U.S. Bureau of Mines on the known deposits of coking coal in Indiana County. The properties and characteristics of the coal and coal blends sampled are presented. The report includes tables and maps.

Letter from Daniel W. Kempner to Pitzonka's Pansy Farm informing that he has not received a trade list since 1948-49 and mentions the slowness of the express shipments.

Photograph used for a newspaper owned by the Oklahoma Publishing Company.

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Bill Morgan, 1216 NW 38, gets a close-up view of Michael MacDougall's skill with cards."

Report issued by the U.S. Bureau of Mines on estimates of known deposits of coking coal in Cambria County, Pennsylvania. Studies on the properties of coal and coal blends from the area are presented. The report includes maps and tables.

Report issued by the U.S. Bureau of Mines on the study of pumping at anthracite mines in Pennsylvania. The study was conducted in order to solve anthracite mine-water problems. The report includes maps, photographs, and illustrations.

Photograph taken for a story in the Oklahoma Times newspaper. Caption: "National Authority in School Guidance field."

Letter from Daniel W. Kempner to George E. Perry enclosing an invoice regarding the different transactions.

Letter from the vice president of Henry a. Dreer, Inc. to D. W. Kempner discussing Kempner's interest in the Kemp Power Soil Shredder, its unavailability, and a request for more details and a copy of the earlier letter Kempner sent with regards to the CCC Sprayer.

Letter from Daniel W. Kempner to Henry A. Dreer requesting his opinion on the Kemp power soil shredder.

Letter from Daniel W. Kempner to Henry A. Dreer informing that the hand weeder and caterpillar torches. sent did not do their job.

Invoice prepared for Daniel W. Kempner by Henry A. Dreer, Inc., listing date of charge and balance due.

Photograph taken for a story in the Daily Oklahoman newspaper.

Letter from Daniel W. Kempner to Henry A. Dreer, Inc. requesting the Hand Weeders.

Letter from Henry A. Dreer, Inc. to D. W. Kempner answering his question about the condition of his fern fronds and giving advice about how to fix the situation.

Letter from Daniel W. Kempner to Henry A. Dreer asking fir he can get referred to one of his specialists regarding fern infestations.

Letter from D. W. Kempner to F. H. Riegelmeier stating he would rather have one shipment.

Letter from F. H. Reigelmeier to D. W. Kempner acknowledging his order and asking whether he would like to split the shipment or ship all of the plants when they're all ready.

Letter from Daniel W. Kempner to Henry A. Dreer requesting 1 California Double Zinnias and 1 Sanvitalia.

Letter from D. W. Kempner to Riegelmeier's, placing an order for Cibotiums, Areca palms, and a tub of Philodendron Pertusum.

Report issued by the U.S. Bureau of Mines regarding a buried valley area (a deposit of clay, sand, and gravel) around the Susquehanna River in the anthracite region of Pennsylvania, near the city of Wilkes-Barre. According the the introduction, "The purpose of this report is to furnish data on the buried valley of the Susquehanna River that will be useful in solving the anthracite mine-water problem" and "This report (a) discusses the physical characteristics and the influence of the buried valley of the Susquehanna River on anthracite mining in the Wyoming Valley area of the Northern field, (b) correlates pertinent data relating to the buried valley, (c) presents accurate contour maps showing the position of the top of solid rock underlying the water-soaked valley-fill deposits in the buried valley, and (d) presents cross sections at regular intervals across the buried valley showing the irregularities in trend and bottom as well as the thickness, configuration, and nature of the materials composing the water-bearing valley-fill deposits" (p. 3).

From Forward: "The value of this survey of the carbonizing properties of American coals by a standard method lies in the comparability of the results on different coals. It must recognized that no standard laboratory method of carbonization, even on a large unit, can yield results that exactly duplicate those obtained in ovens and retorts. The commercial results vary with the type of oven or retort. Allowance must be made for such differences in interpreting the BM-AGA test results in terms of commercial plants."

From Introduction: "The purpose of this investigation was to separate and identify as many of the principal phenolic compounds produced by the mild hydrogenation of Pittsburgh-bed (Bruceton) coal as possible and to determine with the greatest possible accuracy the proportions in which they are present."