File:The microscope and its revelations (1901) (14763809141).jpg

Identifier: microscopeitsrev00carp (find matches)
Title: The microscope and its revelations
Year: 1901 (1900s)
Authors: Carpenter, William Benjamin, 1813-1885 Dallinger, W. H. (William Henry), 1842-1909
Subjects: Microscopy Microscopes Natural history
Publisher: Philadelphia, P. Blackiston's Sons and Co.
Contributing Library: MBLWHOI Library
Digitizing Sponsor: MBLWHOI Library

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nding or rotation, the prismflange or the hinge-block under the object stage loosens its connec-tion with the, stage plate. Ac. Ac.. all of which and much more, as webelieve, is the result of the adaptation of a simple and primitive formto complex appliances for which it was never designed or intended. It is. however, an admirable characteristic! of the firm of Zeiss, lli;it while they adhere doggedly t the old ( ontinental model, they are continuously putting forth their ingenuity and skill to counter- \liat are shown to be its defects. In their best usual form the I ...... I ! the line adjustment is , ,, , inch for each revolution of the This is undoubtedly too rapid, but it could scarcely be because, as we have seen, it had the coarse and lube to lift, and the wear and tear on so fine in constant use led to rapid failure. But the firm has luced in 1886, and was it ^-cat improvement on its pre- bad. ra. 1051.Mikr. xii. i 1895) )• 1
Text Appearing After Image:
FlG. 128 (1898). 168 THE HISTOl.Y AND DEVELOPMENT OF THE MICROSCOPE intioduced a very complex but very remarkable modification of theirline adjustment \\hicli i> intended to obviate both the above defects.;i is a model ostensibly constructed for photo-micrographiepurpose.-, but if successful will >peedily be applied to all their stands.Ilie entire microscope is shown in fig. 128, while a vertical section ofthe line adjustment is presented in fig. 129. and a ground plan ofthe same in fig. 130. A point which seems to be considered ofimportance to some (lerman microscopists is the provision of ahandle hv means of which the instrument may be readily moved,and with the provision, of this the usual large milled head controllingthe line adjustment has been displaced. This is shown at H in fig.

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