Mr. K. K. Landes and Mr. Bradford Willard will speak this afternoon at 4.30 o'clock in the Mineralogical Lecture Room of the University Museum at a meeting of the Geological Conference which will be open to all members of the University. Mr. Landes will speak on the study of oil possibilities of Moffat County in Colorado, and Mr. Willard will talk on evolutionary changes in platystrophia.