Carpenter, William Benjamin, 1813-1885 · Philadelphia : Blakiston · leaf 211
ble investigations of whose results a summary will begiven hereafter (Chap, xi.), have found great advantage from theuse of a Lamp mounted on a base to which a traversing horizontalmovement can be given in any direction by rectangular screws,and furnished with an upright standard carrying two… … Boekett Lamp. MICROSCOPE-LAMPS. 157 In its use, to secure that most perfect position of the flame andcondenser, which ordinary hand-adjustment might not succeed inattaining until after a great expenditure of time and patience.*Fig. 109. Fig. 110.
Microscopy · Biology
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