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Show : Considerable importance m attached j to the distance-measuring field g.ai.s j invented bv Mr. Zeiss, of Jena It is Mmply an extension of the natural power pow-er of tbe -yes to estimare the dutane, of nearby objects. This power depend. npon the fact that the space between the eyes serves. like a base line in su,-veying, su,-veying, the Km" of sit converging upon a selected object from the ends.,. the Ue. In the telemeter the etTeem- distance between the eyes is increase ! distance o ,n.,ble images The distance between the -images w wS.h the remoteness of thoec.s and 3 scale shows what J said to t fai"' a1-"--"-"1-Companion- |