a host of secrets hith- cy, and descriptions of it are now erto beyond his ken. creeping into the technical publica- The general arrangement of this in- tions. strument is easily understood even by The old style of spectroscope was one who does not master the principle made with a prism. This broke… … PRINCETON UNIVERSITY'S NEW DORMITORY—" BLAIR HALL." thick dominoes, compose it. An idea of their appear- be more rapidly grasped. With faintly luminous ob- tinted band, the red at one end and the violet at the ance and position can be obtained by imagining these jects, like nebulae and very small…
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