From Summary: "In order to provide a basis for judging the relative importance of wing failure by fatigue and by single intense gusts, an analysis of wing life for normal cruising flight was made based on data on the frequency of atmospheric gusts. The independent variables considered in the analysis included stress-concentration factor, stress-load relation, wing loading, design and cruising speeds, design gust velocity, and airplane size. Several methods for estimating fatigue life from gust frequencies are discussed."

A slow-neutron-transmission method fro dertermining the hydrogen content of fluorcarbons is described (G.Y.).

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Abstract: The applicability of specific mixtures and organic chlorocarbons in general toward the chlorination of TO₃ has been tested by means of reactions is sealed glass tubes. The results show that thionyl chloride mixed with tetrachloroethylene or a bromothane of the tyoe CHBrC12 will produce TCI4 directly. This same result is produced by CBr2C12 alone.

Report discussing a study involving P.I.G.'s (Philips Ion Gage) in TCl₄ vapor in an all-carbon oven to compare data to a previous study involving P.I.G.'s in air. The purpose of the investigation was to determine the best P.I.G. in TCl₄ vapor and obtain its calibration.

The examination of 3 districts; southeastern Pennsylvania near Chester and Philadelphia, the Williams quarry northeast of Kaston, and the northeastern end of Mt. Pisgah near Mauch Chunk.