44 



ORGANOGRAPHY. 



BOOK I. 



relative abundance. The first twenty-eight cases are taken 

 IVoni Thomson's Treatise on Vegetable Physiology in the 

 Library of Useful Knowledge. For the remainder I am 

 answerable : — 



1 



2 

 3 

 4 

 5 

 6 

 7 

 8 

 9 

 10 

 11 

 12 

 13 

 14 

 15 

 16 

 17 

 18 

 19 

 20 

 21 

 22 

 23 

 24 

 25 

 2G 

 27 

 28 

 29 

 30 

 31 

 32 

 33 

 34 

 35 

 36 

 37 



Names of the plants on the leaves of 

 which the stomates have been counted. 



Andromeda speciosa 

 Arum dracontium . 

 Alisma Plantago 

 Amaryllis Josephinai . 

 Cobita scandens 

 Dianthus Caryophyllus 

 Daphne Mezercum 

 Epidendrum .... 

 Hypericum grandiflorum 

 Hydrangea quercifolia 

 Ga^rtnera . 



Ilex 



Iris germanica . 

 Olea europa^a . . 

 Paeonia .... 

 Pittosporum Tobira 

 Philadelphus coronarius 



Pyrus 



Sempervivum tectorum 

 Syringa vulgaris 

 Rheum palmatum . 

 Rudbeckia 

 Ilumex acetosa . . 

 Theophrasta . 

 Tussilago farfara 

 Tradescantia . 

 Vitis vinifera 

 Viscum album . . 

 Viburnvnn Tinus 

 Prunus Laurocerasus 

 Crinum amabile 

 Stapelia (stem) . . 

 vVlstromeria . 

 Mesembryanthemum 

 Aloe 



Yucca 



Cactus speciosissimus (stem) 



Number of stomates on one 

 square surface. 



inch 



On both. 



24,320 

 18,000 

 63,000 



77,000 



143,750 



23,144 



41,000 

 49,000 

 31,088 



13,700 

 4000 



400 



40,000 

 15,000 



70,000 

 45,000 

 80,000 

 15,000 



I 



