Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 378
hich is exceedinglyuseful with some kinds of illumination, especially with reflected light,with the higher powers, and for Powell and Lea lands super-stagecondenser. The hole for tilling the reservoir is placed at the diagonal cornerfor convenience. The chimney is metal with an ordinary \\ x 1glass… … 348 PRACTICAL MICROSCOPY Ion- • length of chimney should be 7 inches. Chimney should be-lead black inside. This chimney serves four purposes : 1st, imageof tme s not distorted by stri/and specks common to ordmary
Microscopy
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