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SOOO more Words and nearly 2000 more Illus¬ 
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After Forty year3* 
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Patents obtained through Munn AOo.arenoticed 
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As the Publishers of the Geologist do not furnish extras to the con¬ 
tributors, we will furnish them at the following rates: 
2 Pages. 4 Pages. 6 Pages. 8 Pages. 10 Pages. 12 Pages. 14 Page. 16 Pages. 
25 Copies $1.00 
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50 “ 
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One page will be charged same price as two pages and three pnges same as four, 
and so on. Covers will cost 50 cents for the first 12—nil over 12 will be 1 cent each 
up to 100. If 100 or more covers are ordered the lot will be at the rate of le. each. 
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L. KIMBALL & CO., Book and Job Printers, 
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Crystalline Rock Samples 
Comprising granites, syenites, diorytes, mica and hornblende schists, trap rocks, 
quartzytes and conglomerates, in all more than 100 varieties. 
Carefully selected from the Drift at Ann Arbor, Mich., dressed to regular 
museum size, three inches by four, and correctly labeled. 
Adapted for illustration and reference in geological study in regions where there 
are but few crystalline rocks. 
Price of ordinary varieties 50 cents a specimen. 110 different varieties for $50.00. 
Address I- B. Wl LL 
ANN ARBOR, MICHIGAN. 
