44 
ORGANOGRAPHY. 
BOOK I. 
relative abundance. The first twenty-eight cases are taken 
from Thomson's Treatise on Vegetable Physiology in the 
Library of Useful Knowledge. For the remainder I am 
answerable : — 
, Number of stomates on one inch 
Names of the plants on the leaves of 
square surface. 
which the stomates have been counted. 
On upper 
On under 
side. 
side. 
On both. 
1 
Andromeda speciosa . . . 
None 
32,000 
2 
Arum dracontium .... 
8000 
16,320 
24,320 
3 
Alisma Plantago .... 
12,000 
6000 
18,000 
4 
Amaryllis Josephinae . . . 
31,500 
31,500 
63,000 
5 
Cob^a scandens .... 
None 
20,000 
6 
Dianthus Caryophyllus . . 
38,500 
38,500 
77,000 
7 
Daphne Mezereum 
None 
4000 
8 
None 
4800 
9 
Hypericum grandiflorum . . 
None 
47,800 
10 
Hydrangea quercifolia . . 
None 
160,000 
11 
Gaertnera ... ... 
1000 
142,750 
143,750 
12 
Ilex 
None 
63,600 
13 
11,572 
11,572 
23,144 
14 
None 
57,600 
15 
None 
13,790 
16 
Pittosporum Tobira . . . 
None 
160,000 
17 
Philadelphus coronarius . 
None 
20,000 
18 
None 
24,000 
19 
Sempervivum tectorum . . 
10,7]0 
6000 
20 
Syringa vulgaris .... 
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None 
160,000 
21 
1000 
40,000 
41,000 
22 
8000 
41,000 
49,000 
23 
11,088 
20,000 
31,088 
24 
None 
172,032 
25 
Tussilago farfara .... 
1200 
12,500 
13,700 
26 
2000 
2000 
4000 
27 
None 
13,600 
28 
200 
200 
400 
29 
Viburnum Tinus .... 
None 
90,000 
30 
Prunus Laurocerasus . . 
None 
90,000 
31 
Crinum amabile .... 
20,000 
20,000 
40,000 
32 
15,000 
33 
None 
20,000 
34 
Mesembryanthemum . . . 
30,000 
40,000 
70,000 
35 
25,000 
20,000 
45,000 
36 
40,000 
40,000 
80,000 
37 
Cactus speciosissimus (stem) 
15,000 
