Obrázky stránek
PDF
ePub
[blocks in formation]
[blocks in formation]
[graphic][subsumed][subsumed][subsumed][subsumed][subsumed][merged small]

PHOTOMICROGRAPHS

OF TRANSVERSE SECTIONS OF

LIBRARY CLOTH
(SMOOTH SURFACE)

[graphic][merged small][merged small][merged small][graphic][merged small]
[merged small][merged small][merged small][merged small][merged small][merged small][ocr errors][merged small][merged small][merged small][merged small][merged small][ocr errors][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][ocr errors]
« PředchozíPokračovat »