Back Matter Source: The Scientific Monthly, Vol. 67, No. 6 (Dec., 1948) Published by: American Association for the Advancement of Science Stable URL: http://www.jstor.org/stable/22364 . Accessed: 07/05/2014 18:14 Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, available at . http://www.jstor.org/page/info/about/policies/terms.jsp . JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact [email protected]. . American Association for the Advancement of Science is collaborating with JSTOR to digitize, preserve and extend access to The Scientific Monthly. http://www.jstor.org This content downloaded from 169.229.32.136 on Wed, 7 May 2014 18:14:50 PM All use subject to JSTOR Terms and Conditions
Transcript
Back MatterSource: The Scientific Monthly, Vol. 67, No. 6 (Dec., 1948)Published by: American Association for the Advancement of ScienceStable URL: http://www.jstor.org/stable/22364 .
Accessed: 07/05/2014 18:14
Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, available at .http://www.jstor.org/page/info/about/policies/terms.jsp
.JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range ofcontent in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new formsof scholarship. For more information about JSTOR, please contact [email protected].
.
American Association for the Advancement of Science is collaborating with JSTOR to digitize, preserve andextend access to The Scientific Monthly.
http://www.jstor.org
This content downloaded from 169.229.32.136 on Wed, 7 May 2014 18:14:50 PMAll use subject to JSTOR Terms and Conditions
.,.,.,]S,,.~~ ~~~~~~ ~~~~~~~~ . .. . .. .. Spectrography;... To record composition e nsm lfdn mc quantitatively and qualitatively, Kodak Ss st offers 108 specialized materials. For general *? spectrographic use, however, Kodak recom- 11 mends two emulsions: Kodak Spectrum Analysis No. 1 Plates and Films for high This spectrogram of a piece of stainless
contrast, low background density, and low steel shows it to contain chromium, nickel, and iron, but none of the other alloying
granularity; and for a more uniform con- elements commonly found in commercial
X-ray diffraction To record crystalse ... line composition, stresses, and thermal his- .......... tory by x-ray diffraction, the fastest film to use is KIodak In dustrial X-ray Film,This x-ray diffraction pattern shows, by u
K.Whenosmooth micrdnitmeste s on F the density variations along the Debye- Type K.We mohmcoestmtrScherrer rings, notably by the patchy
traces rather than highest film speed are center, that the stainless steel used above
required, use fine-grain Kodak Industrial i o stoi nispoete
X-ray Film, Type A. This electron diffraction study (below) of the surface of the same stainless steel shows the presence of a thin layer, formed when the steel was treated with concen- trated nitric acid for greater resistance to
3 Electron diffraction . . .To record the corrosion.
nature and composition of thin films, layers, surface reaction products of materials by electron diffraction, Kodak offers the follow- ing products: Kodak Medium Lan tern Slide Plates., and Kodak Contrast Lan- tern Slide Plates, and for the most critical work, Kodak Spec troscopic Plates, Type 548-0. Users also report that many highly in- formative electron diffraction patterns have been recorded on Kodak Verichrom e Film.
Kodak will send you free: a copy of the booklet "Materials for Spectrum Analysis" and a chart that
FUNCTIONAL tabulates Kodak films for x-ray diffraction. Your specific questions on Kodak Lantern Slide Plates PHOTOGRAPHY ~for electron diffraction, and on other products
PHOTOGRAPmetinedabveYwllgldl beanweedb
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