V 
CONTENTS. 
Page 
Preface -------- iff 
Introduction - - - - - - -1 
The Hall. 
Busts of Geologists - 
H. T. De la Beclie 
R. I. Murchison - 
A. C. Ramsay - 
James Hutton 
John Playfair 
James Hall 
William Smith 
William Buckland - 
Adam Sedgwick 
G. B. Greenough ■ - 
Edward Forbes 
J. B. Jukes - 
The Ludlam Collection - 
Building and Ornamental Stones 
Granites - 
„ of Cornwall and Devon 
„ „ Scotland - 
„ „ Ireland 
Porphyries, Elvans, &c. 
Marbles - 
of Derbyshire - 
„ Staffordshire 
„ Devonshire 
„ Bristol, Isle of Man, &c. 
„ Ireland 
„ Scotland 
Alabaster 
Serpentine 
„ of Corn Avail 
„ ' „ Ireland v 
„ „ Anglesey 
„ „ Scotland 
Limestones - 
Dolomite, or Magnesian Limestone 
Sandstones - 
Flagstones, &c. 
Slates - 
Marble table-tops - 
Grinding and Polishing Stones 
Plaster of Paris and Cements - 
3 
3 
4 
6 
6 
7 
7 
8 
8 
9 
10 
11 
12 
12 
15 
16 
17 
19 
20 
20 
22 
23 
24 
25 
25 
26 
27 
28 
28 
28 
29 
29 
30 
30 
33 
34 
35 
36 
38 
38 
40 
