. The Dental cosmos. xx* c c% y line CC is fixed. The scale MM ismeasured off in millimeters from C aszero in both directions. The scale NNis marked off in millimeters downwardfrom C to zero on both sides at N andW. The object of this device is to set Fig. the lines AA and BB at equal angleswith CC. When the sum of the read-ings of A and A equals the sum of the FRIEL. THE DIAGNOSIS OF MALOCCLUSION OF THE TEETH. 829 readings of B and B, the lines AA andBB are forming equal angles with CCFig. 7 is a photograph of the modifiedinstrument. Fig. 13.

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Keywords: ., bookcentury1900, bookdecade1910, bookiddent, booksubjectdentistry