L'emploi desaccélérateurs
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Lime producers discuss industry's problems
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Luftporenbildende zusätze zum zement
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Cooling aggregates and cement for Detroit dam
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A limestone quarry in Germany
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Production of lightweight aggregate
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Building research
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Rotary kiln doubles production of lime
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Lone Star’s new plant
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Dewey portland cement's kiln installed in 14 days
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Use of cement in engineering and large soale building
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Gli aeranti nei calccestruzzi
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Mechanically determining the time of set of portland cement by moans of tho spissograph
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The National Gypsum Co. story
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Lime kiln operating costs
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L'avenir des chaux hydrauliques
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Recent developments in vertical shaft lime kilns
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Alteration of lime qualities
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The Pleated Sheet, A New Layer Configuration of Polypeptide Chains
For many years it has been assumed that in silk fibroin, stretched hair and muscle, and other proteins with the β-keratin structure the polypeptide chains are extended to nearly their maximum length, about 3.6 A per residue, and during the last decade it has been assumed also that the chains form lateral hydrogen bond…
Rotatory power and other optical properties of certain liquid crystals
A group of liquid crystals, mainly derivates of cholesterol, shows remarkable optical properties, including strong rotatory power and selective reflexion of circularly polarized light in a narrow region of wave-lengths. In this paper it is shown how these properties can be explained by the assumption that the molecule…