Baltimore and Ohio's "The Capitol Limited" train No. 6, eastbound rolls through Halithorpe, Maryland enroute to Washington D.C. circa 1959.

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This report deals with the development of methods and techniques for measuring the amounts of radioisotope on the stack wall, in ash, stack gas and atmosphere during and after incineration in the conventional refuse-type destructor.

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K-capture to positron branching ratios were measured in the decay of Na/ sup 22/, Co/sup 58/, and Ga/sup 68/ -- all pure Gamow-Teller emitters, using coincidence scintillation spectrometer techniques. The measured values are 0.105 plus or minus 0.004 for Na/sup 22/, 5.08 plus or minus 0.17 for Co/sup 58/, and 1.28 plus or minus 0.12 and 0.10 plus or minus 0.02 for Ga/sup 58/. From these the Fierz interference terra is computed to be b =--0.004 plus or minus 0.012, -0.004 plus or minus 0.14, --0-03 plus or minus 0.02, and +0.03 plus or minus 0.01, respectively. These results indicate that the Fierz interference in Gamow-Teller interaction is very small. The decay of 270 day Ge/sup 68/ was investigated in equilibrium with Ga/sup 68/ to look for a possible low-lying 0+ level in Ga/sup 68/ using x-ray--x-ray and x-ray- gamma -ray coincidences. The result was negative. Besides the 9 kev K x ray, the 1.07 Mev gamma ray in the decay of Ga/sup 68/ and annihilation radiation, no other gamma rays were detected (<8% of 1.07 Mev gamma ray). The number of positrons per 1.07 Mev gamma - quantum was determined as 19.47 plus or minus 2.10. The ratio of …

Letter from I. H. Kempner to Mr. and Mrs. Eric Goldberger discussing about the good wishes that they have sent for New Year and exchanging pleasantries.

Letter from I. H. Kempner to Mr. and Mrs. E. Goldberger discussing about the congratulatory mail that he received for his birthday and exchanging pleasantries at the end.

A survey was made on methcds and related costs of disposing of radioactive wastes as practiced in 1955 by twelve atomic industry installations. Wherever possible, estimated unit costs of differentiated stages of waste handling are shown- these are integrated to show the over-all scope of waste dispesal practices at each site. Tabular data summarize costs and operation magnitades at the installations. A pattern is established for standardizing the reporting of fixed costs and equipment unsage costs. The economy of solid waste volume reduction is analyzed. Material costs are listed. An outline for recording monthly waste disposal costs is presented. Obvious conclusions drawn from the factual data are: that it is more expensive per cubic foot to handle high-level wastes than low-level wastes. and that land disposal is less expenaive than sea disposal. A reexamination of baling economics shows that high compression of solid wastes is more expensive than simpler forms of compaction. (auth)

Letter from Harris L. Kempner to Paul P. Swett, Jr. discussing the Texas Prudential Insurance Company and expressing hope that Paul might be able to make a trip to Texas.

Letter from Paul P. Swett, Jr. to Harris L. Kempner expressing pleasure at Kempner's promotion and hoping that they will be able to get together sometime.

Letter from Thomas McAdams to I. H. Kempner discussing the growth of the Union Trust Company of Baltimore. McAdams also mentions he awaits Kempner's visit next time he is in Baltimore.

Letter from I. H. Kempner to Thomas B. McAdams discussing a photo of their group of ABA officers and Administrative Committee visiting the White House during President Harding's administration. Kempner also mentions his desire to visit Baltimore and his 50th wedding anniversary celebration.

Letter from Isaac H. Kempner to Mr. and Mrs. Goldberger thanking for the birthday wishes.

Client card describing work completed at the Roman Bronze Works Foundry for Mr. Wilson J. Binebrink, including a job number, brief description, monetary amount, and dates associated with each entry. This work order includes two bronze cast plaques, two bronze cast "Bas Relief," and a bronze cast plaque measuring 22" x 17".

Client card describing work completed at the Roman Bronze Works Foundry for Mrs. Allan L. Berman, including a job number, brief description, monetary amount, and dates associated with each entry. This work order includes a bronze case of a head mounted on a Belgian black base, a black Bakelite base cube for a plaster model, and a recoloring of a plaster model.

Telegram sent by Jeane and D. W. Kempner to Mrs. Sam T. Maceo discussing their concern for Sam's recovery and excitement at the good news.

Letter from Dr. Chauncey D. Leake to several friends discussing the weather, meetings of the Western Institute of Epilepsy and the Neuropsychiatric Society of Mexico, and visits to Atlanta and Baltimore.

Letter from Dr. Chauncey D. Leake to several friends discussing recent medical conference in Princeton and visits around the northeastern US.

Telegram sent by the Goldberger and Silver Families to I. H. Kempner discussing the celebration of their 6th anniversary in Baltimore.

Telegram sent by the Goldberger family to I. H. Kempner wishing him a happy birthday.

Letter from I. H. Kempner to Hugo Goldberger discussing Goldberger's announcement of his U.S. citizenship.

Letter from Hugo Goldberger to I. H. Kempner discussing his new United States citizenship.

Letter from I. H. Kempner to Mr. and Mrs. R. Goldberger discussing the New Year card he received from the Goldbergers.

Letter from I. H. Kempner to Dan Oppenheimer discussing about the letter Dan wrote to R. Lee Kempner requesting information on his mother's non-taxing gift-able stocks. I. H. Kempner also discusses about his thoughts on the same and the reason why R. Lee Kempner could not respond to it anytime soon.