kept carefully For so complete a laboratory, a very perfect system partment. This naturally is largely devoted to elec- in drawers. Among others, one tool for cutting out of records is required. This is carried out on the card a hemispherical cavity in a copper block, used in the catalogue system,… … PHOTOMETRIC AND EXPERIMENTAL DEPARTMENT. plete account of all that this room It may be worth while at this contains. From the cut a very good time of year to call attention to a makers, and of galvanometers, reflecting and quadrant, idea of its general arrangement may he obtained. simple and easy…
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