■ PLATE 23. 



iLLTTSTiLiTrrE OF ]5tLE. M'Xab's Papee, " Eeiiaeks ox the SlETJCrtmE OP 



THE Leates op ceetaix Coxitee^." 



Vide Proceedings R. I. Acad,, Yol. 2, Ser, 2, p. 209. 



Fig. 1. Piniis Hookeiiana. 



2. Pinus Pattoniana. 



3. PiiLTis canadensis. 



4. Pinus Mertensiana. 



5. Pinus Bmnoniana. 



6. Pinus Sieboldii. 



All the Pigui'es are magnified 20 diameters. 



e. EpideiTois. 



h. Hypoderma. 



e. Eesin canal. 



e. Sheath, of the Pibro-vascular bundles. 



[ The letters refer to all the Ficfures. ] 



