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ILLUSTRATIONS 



OF THE 



/ 



HUTTONIAN THEO 



OF THE EARTH 



/ 



By JOHN PLAYFAIR 



I'' 



I 



»**flM»thi*. 



r. R. S. EDIN. AND PROFESSOR OF MATHEMATICS 



IN THE UNIVERSITY OF EDINBURGH. 



H ■■ J ■■■ III* 



. Nunc naturakm caufam qua:rimus et ajfiduamy tiQn raram et 



foriuitam^ 



Senhca, 



EDINBURGH: 



/ 



PRINTED FOR CADELL AND DAVIES, LONDON, AND 



F 



WILLIAM CREECH, EDINBURGH. 



I 80 



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