334 EARL RAVENS WORTH ON THE CAPERCAILZIE. 



Fig. 2. Transverse section just below top of pulp-cavity. E, thin enamel ; 

 D.l, light dentine . D.d, dark dentine ; P, pulp -cavity ; short in- 

 foldings of peripheral bands (PI.) into apices of fusiform light 

 dentine are seen, also rudimentary radiations of pulp-cavity. 



Fig. S. Transverse section a little below fig. 2 and above the radiations of 

 the pulp-cavity, the rudiments of which are indicated as in fig. 2. 

 D.l, light dentine ; D.d, dark dentine ; P, pulp-cavity, the infolded 

 peripheral bands (PI) extend inwards two -thirds of the distance 

 towards the pulp-cavity. 



Fig. 4. Transverse section a little below the level of the alveolar border. 

 D.l, light dentine ; D.d, dark dentine ; P. pulp-cavity ; PI. peri- 

 pheral band infolded ; P, irregular radiations of pulp- cavity. 



Fig. 5. Portion of fig. 4, magnified 48 diameters; 1 1 t, toothlets; D.l, 

 light dentine ; D.d, dark dentine ; PI, peripheral band infolded and 

 sinuous; PPP, pulp-cavity. 



XXI. — On the Capercailzie (Tetrao Urogallus, Linn.). By the 

 Eight Honourable Earl Ravensworth. 



It happens that I have had an opportunity which very few others 

 have enjoyed, of observing and studying the habits and charac- 

 ter of this noble species of " Tetrao" which Linnaeus has distin- 

 guished by the specific name of " Urogallus." 



I proceed therefore to give the results of this experience, in 

 the hope that my statement will not be without interest to the 

 members of the Natural History Society. This bird, originally 

 indigenous in the British Islands, having become extinct, was 

 introduced into the Scottish Highlands some forty years ago by 

 the late Marquis of Breadalbane, at his splendid seat of Tay- 

 mouth in Perthshire. From thence it has spread all the way 

 down the great Strath of the Tay, and into the adjacent districts 

 of Strath Earn, wherever the extensive forests of Scotch Eirs 

 afford it an appropriate asylum. I myself have seen these grand 

 birds in their wild state, and have shot four specimens in the 

 woods of Drummond Castle and Strathallan. Erom the know- 

 ledge thus acquired of their habits, the idea struck me that they 



