"Changes, corrections and additions to the original report are included in this addendum. These are brought about by further development of the design by Blaw-Knox, ANL and ORNL. The changes are listed in accordance with the main headings, pages and paragraphs to which they apply."

"Changes, corrections and additions to the original report are included in this addendum. These are brought about by further development of the design by Blaw-Knox, AHL and ORNL. The changes in the original wiritings are listed below in accordance with the main headings, pages and paragraphs to which they apply. Following this is a list of the contemplated personnel in the MTR program. This listing sets out the number of offices and the office furniture requirements. Also numbers for lockers, showers, toilets and rest rooms are set forth. Although the listing includes all major buildings planned for the site, it is included here since the reactor building wing is more markedly influenced by office requirements."

The following report discusses special shielded containers, called coffins, that are used for removing beam hole plugs from the reactor, transporting them to plug storage and inserting them therein. This report focuses on the handling of dummy and experimental beam hole plugs.

The following report discusses the building design and development of the reactor building, Building 1105, for Argonne National Laboratory, that is meant to house the reactor.

The following report describes the design and construction of the reactor building wing, designed to attach to the reactor building for the Argonne National Laboratory.

Metabolic properties of plutonium and allied materials, biological studies of radiation effects, and biological effects of radiation from external and internal sources.

In H measurements, the measured flux-linkage change represents twice the value of H to be plotted. In B measurements the bucking coil links flux equal to the air-flux in the B-measuring coils. The measured flux change therefore corresponds to twice the flux of intrinsic magnetization in the sample.

"Methods for calculating the opacity of materials at high temperatures are discussed in this report. Minor improvements are outlined for the treatment of continuous absorption processes, and a small error usually made in treating the scattering process is corrected. In contrast to all previous calculations of opacity, the effect of line absorption is carefully examined, for it may well be the dominant process under certain conditions of temperature and density. Detailed methods for calculating the line absorption contribution are, therefore, developed. To illustrate the principles involved, the opacity of pure iron at a temperature of 1000 volts and normal density is worked out in detail" (p. ii).

Final report describing the development and usage of an automatic decade scaler which operates for a fixed number of counts, developed for use with a Geiger tube.

The following report is a quarterly report by the Monsanto Chemical Company for liquid waste disposal research, covering the period between April 1 to June 30, 1949.

This article examines the history of accelerating charged particles with new types of accelerators. It is translated from a Russian publication.

The operation of the 184" synchro-cyclotron is reviewed in terms of the theory as developed by the authors. Certain relevant data on the properties of the magnet and rotating condenser are also presented.

Abstract: "Crystal system, crystal habit, and principal refractive indices, of uranyl hydrogen phosphate tetrahydrate, uranyl ammonium phosphate trihydrate, and uranyl phosphate tetrahydrate are reported. A procedure for differentation of these three compounds using this data was developed."

A report on paper chromatography in synthetic organic chemistry.

Report discussing "inhalation toxicity studies of boron halides and certain fluorinated hydrocarbons," a "short-term feeding study with cobalt fluoride in rats," and "determination of boron halides in air." This document contains parts 1-3 of Chapter 11 of Volume 2.

This report explains different sources of photo-neutrons and their uses.

Report discussing experiments on the photometric determination of various elements in the presence of trace amounts of Uranium.

This report discusses enhanced Hg202 as a source of monochromatic light in relation to the effects of the isotopic impurities.

From introduction: "This is the first report on the study made of the possible power recovery without excessive cost, from the operation of the Brookhaven reactor."

From abstract: "The means of preparing uranium trifluoride are discussed. The most practical method is the reduction of uranium tetrafluoride with uranium although reduction with hydrogen or atomic hydrogen may also be feasible...A literature survey and discussion of other means of preparation are given."

Report discussing the progress made on a research project for the preparation of ductile zirconium during April 1949.

A report about the starting of the design of dissociation equipment and casting equipment.

A report about an experimental apparatus for continuous casting of zirconium from vacuum.

A report which shows an approval was made for continuous casting equipment and construction. Installation of arc generators and associated controls was mainly completed.