1 88 The American Geologist. September, 1903. 
Quarries of granite, tufa, basalt, sandstone, marble, and serpentine, 
are described. Tests of these stones have been made, and are presented 
in tables, showing their crushing strength, elasticity, specific gravity, 
effects of freezing and thawing, and chemical analyses. 
The coal deposits of Washington, occurring on both sides of the Cas- 
cade range, are referred to the early part of Eocene time. During the 
Miocene and Pliocene orogenic movements that attended and followed 
the great basalt outflows in the Cascade range and on the Columbia 
plains, the coal measures in most of their areas were strongly folded 
and compressed, with frequent faulting; but in tht Roslyn area, the 
most valuable in the state, on the east side of the range, the rocks were 
only gently folded. The coals- range from lignite to bituminous coking 
coal. 
In the year 1902 the production of coal in Washington amqunted to 
2,690,789 tons, and of coke, 40,569 tons. San Francisco has been the chief 
market outside the state, with beginning of shipments in 1901 to the 
Hawaiian islands and Alaska ; while about two-thirds of the total pro- 
duction is used in or near the state by railways and steamships, and for 
domestic purposes, smelting, and manufacturing. w. u. 
Preliminary Report on the Lead and Zinc Deposits of Southwestern 
Wisconsin, By Ulysses Sherman Grant. Wisconsin Geological 
and Natural History Survey, Bulletin No. IX. Pages vii. 103 ; with 
4 plates and 8 figures in the text. 1903. 
This report concisely describes the geology and ore deposits of the 
lead and zinc mining region in Wisconsin, which has been more pro- 
ductive than its continuations into Illinois and Iowa, in the vicinity of 
Galena and Dubuque. A geological map is presented, comprising Grant, 
Iowa, and Lafayette counties, an area of about 2,500 square miles. 
More than two centuries ago, the lead of this region was known to 
the early French explorers, Perrot and Le Sueur ; and it was first 
mined in 1788 by Julien Dubuque, on the site of the city that bears his 
name. During the past seventy-five years mining has been carried on 
continuously; and for about forty years the zinc ores have been worked, 
their yield becoming larger than that of lead. 
Dr. Grant has here well summarized the result of former elaborate 
surveys and discussions of this important mining district by Strong, 
Chamberlin, and Van Hise, with aid also from the more recent report 
by Bain on the similar lead and zinc deposits of the Ozark region. 
The purpose of this publication is to give a compendious description 
of the district and its ores, and to explain the processes of their de- 
position, so that they will be readily understood by those engaged in 
mining and by investors who may further extend this industry. 
It is recommended that a topographic map of the district be made by 
this Wisconsin Survey on the scale of a mile to an inch, with contour 
lines for each twenty feet ; and that the principal mining localities be 
mapped more in detail, on the scale of four inches to the mile, with 
publication on at least half that scale, the topography being shown by 
contours ten feet apart. On these maps, besides the coloring of the 
