IV FOREWORD


 Fifty-nine authors, all on the Bureau staff, contributed to the 61 economic
and statistical surveys rn this volume. There are 819 pages, divided about
equally between descriptive text and charts and tables. The cloth binding
is distinctive, and each year the volume should be ready for distribution
by August, thus providing the mineral industries with adequate data in more
convenient form at an earlier date than elsewhere or heretofore available.
 It is the desire of the Bureau that the Minerals Yearbook be improved each
year; criticisms and suggestions for betterment are invited.
SCOTT TURNER, Director.
 JUNE 15, 1933.