File:The electron microscope, its development, present performance and future possibilities (1948) (21020979030).jpg

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Lampbrush chromosome: magnification x11,000

Title: The electron microscope, its development, present performance and future possibilities
Identifier: electronmicrosco00gabo (find matches)
Year: 1948 (1940s)
Authors: Gabor, Dennis, 1900-
Subjects: Electron microscopes
Publisher: Brooklyn, Chemical Pub. Co.
Contributing Library: MBLWHOI Library
Digitizing Sponsor: MBLWHOI Library

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90 The Electron Microscope altogether only about a million atoms, and some investigators consider it as a giant protein molecule.
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Fig. 31. Lampbrush chromosome. Magnification X 11,000 Figure 31 is a sample from another field of biological research. It shows a giant lanipbrusJi chromosome. Genetics may become one of the most important fields for the electron microscope in the future. From experiments with electron bombardment of the eggs of Drosophila Melanogaster, C. P. Haskins has derived evidence that a single gene is confined to a space about the size of a protein molecule. To see single protein molecules is not beyond the range of the electron microscope as it is at present. When we have learned to see at least some of their details, important progress may be expected in the study of heredity. Figure 32 is a photograph of that fascinating borderland sub- ject of living and dead matter, the tobacco mosaic virus. So far the action of different chemical reagents and anti-sera on this virus has been tested under the electron microscope; in time we may also learn the secret of its procreative power. One of the finest scientific achievements of electron micro- scopical research is the elucidation of the development process in photography.^^ As the electron micrograph in figure Z?) shows, every silver grain appears as a tangled skein of a relatively very long and thin silver filament. There is now enough evidence to

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  • bookid:electronmicrosco00gabo
  • bookyear:1948
  • bookdecade:1940
  • bookcentury:1900
  • bookauthor:Gabor_Dennis_1900_
  • booksubject:Electron_microscopes
  • bookpublisher:Brooklyn_Chemical_Pub_Co_
  • bookcontributor:MBLWHOI_Library
  • booksponsor:MBLWHOI_Library
  • bookleafnumber:102
  • bookcollection:biodiversity
  • bookcollection:MBLWHOI
  • bookcollection:blc
  • bookcollection:americana
  • BHL Collection
  • BHL Consortium
Flickr posted date
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7 September 2015


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