330 KANSAS CITY REVIEW OF SCIENCE. 
near Cow Island. The Professor left us to take the last boat down the Missouri. 
The night before he went on board we had gone out to some beds on an open 
prairie twelve miles south of the river, and delaying too long, night overtook us 
just as we reached the breaks of the Missouri. I advised the Professor to stop 
where we were until morning, as I would much prefer to sleep in the open air 
and go without supper, than to make such a dangerous attempt as to try to reach 
the river at night, with no trail and deep canons on either side, but he thought he 
saw the lights of the steamer that he must take, and fearful of missing it, he de- 
termined to reach the river if it took all night. After four or five hours of the 
most dangerous and difi&cult travehng I ever engaged in, we reached our destina- 
tion. When night overtook us we were 1,200 feet above the Missouri, the canons 
that surrounded us looked so black that the darkness could almost have been 
cut. We would follow an old buffalo trail to find it washed out. Would get 
nearly to the river and find a yawning gulf of inky darkness beneath our feet and 
have to retrace our way to the top of the Bad Lands. We, of course had to lead 
our horses and feel our way with the greatest caution, as one misstep would hurl 
us into eternity. I would gladly have stopped, but the indomitable energy of Pro- 
fessor Cope that knew of no defeat, won us victory, and we accomplished what 
no one else had ever done, namely, to reach the river after night from the high 
prairies south of it. The boat had indeed arrived, and we had just enough time 
the next day to get the Professor's things up to the landing. 
Mr. Isaac and myself remained at Cow Island until the first of November, 
when severe cold weather forced us to retreat to Fort Benton, which we reached 
in safety. From this point I took the stage for another journey of 600 miles and 
suffered very much through the mountains, where the mercury fell to 20° below 
zero. But the Union Pacific train was at last reached and I was speeding east- 
ward, and before many days was walking the streets of Philadelphia in time to 
see some of the wonders of the Centennial buildings. 
The results of our three months expedition have been published by the Gov- 
ernment and a new chapter added to the palaeontology of North America. 
THE LEAD AND ZINC REGION OF MISSOURI AND KANSAS. 1 
F. L. CLERK. 
The lead and zinc region of Southwest Missouri is known to embrace the 
greater portion of Green, Dade, Lawrence, Jasper, Newton, and McDonald 
Counties, and to it adjoins the mineral region of the eastern part of Cherokee 
County, Kansas. Throughout the whole of this region, both lead and zinc have 
been found ; but the most productive district, and the only one at present worked, 
is confined to the northern half of Newton County, the southern half of Jasper 
1 ¥vom Sidvuwce-sheets ot The Mineral Resources of the United States, -p'o.hlisb.Qdh-y the United 
States Geological Survey, Department of Industrial Statistics. Albert Williams, Jr., Chief of 
Department. 
