INDEX 
47 
Page. 
Gypsum, formation, of Italy-------* —. 18 
extent of. 19 
boundaries of_ 25 
age of.-...-... 25,26 
on the Canadian river------- 34 
of Plaister Cove, N. S. 34 
Gypsum, on Red river-----...-.. 16 
on Delaware creek_ 16,18 
of the Andes--- 18, 26 
of Iowa_ 18, 26 
of Nova Scotia_ 18, 26 
fibrous_ 18 
used as glass---.....-. 18 
quantity of.-...... 25 
composition and characters.......-.... 32 
at Plaister Cove, N. S.-. 34 
quantity exported to United States------—.. 35 
origin of. 35—36 
in California__ 35 
H. 
Hamilton, W. J _ 18,34 
Helix _.. 28 
Hitchcock, Professor ......._..._ .. 25,31 
Hueco Pass, elevation of_ 8 
Hueco mountains ___.__ 8 
geology of.. 12 
Hueco Tanks _ 15 
Hurrah creek ......._... 9 
Independence Springs ___ 21 
Iowa, gypsum of......... 18 
Italy, gypsum beds of-.......... 18 
J. 
Jurassic. 
L. 
Los Cornudos ..... 13,15 
Lead .-. 36,37 
argentiferous_____ 37 
Lignite .....*.. 31 
Limestone, crystalline_ 12 
carboniferous....... 12 14 26 27 
for buildings_______ 29 30 
Lime, caustic...... 27 30 
Llano Estacado, description of_______ g 
elevation.......... g 9 
undulations. g 
extent........ • g iq 
rivers and streams__. _____ 10 
bluff borders_ 10 
S eol °gy.-.-... 16,17 
fossils. yi 
sandstone. 17 
possibility of obtaining water on, by boring___-... 22 
building stones ..^.... 39 
