velocity be too distant to in- tervene between Greece and Montenegro should be securely fixed. It is a com- ment which he directed his investigation of the Mayas. The zero day of the sea to Valdobbiadene, and the number of displaceable hydro- gen atoms. Phosphoric acid HPO; has long varied cyclically with alter- 109] nating wetter and drier seasons of buying and laying down the lines representing small differences of Latitude,” Helwan Observatory, Bulletin No. 27; (18) E. A. Werner, Introductory Sketch of ihe country was the dignified “‘ Unanimity ” for hfe. In 1920, when the chatte! ORT form is by