164 Proceedings of the Royal Physical Society. 



around Fort Augustus in 1848. Two or three years after, to 

 my knowledge, they first made tlieir appearance. I find they 

 were seen about the same time on the south side of Loch 

 Ness, and were supposed to be seen in Invergarry woods to 

 the west of this about twenty-four years ago [say 1855]. 

 They are not so numerous as they were twelve years ago." 



My thanks are due to my friend Mr Stirling of Garden, for 

 obtaining for me. further particulars regarding their extension 

 along Loch Ness on the north side. In Glengarry, squirrels 

 first appeared between 1853 and 1855, and are believed to 

 have spread from Beaufort. The woods in Glengarry are so 

 extensive that attempts to keep their numbers in check have 

 not been very successful, the rough nature of the ground also 

 acting as their safeguard. They rapidly became very numer- 

 ous soon after their appearance in the district. The severe 

 winter of 1878-79, it is reported, does not appear to have 

 diminished them in Glengarr}^ 



It now occurs also near the head of Glen Grivie and Glen 

 Urquhart, as I am informed by Mr J. M'Gregor, Ladywell, 

 Dunkeld. 



Ross-shire and Cromarty. 



The first date I have for Eoss and Cromarty is a somewhat 

 late one — 1858 — at Kilmuir Castle and Tarbert House about 

 the same time, having come round along the shores of the 

 Firth. 



Sutherland and Caithness. 



The squirrel reappeared in the county of Sutherland in 1859, 

 at Clashmore, on the authority of Mr Thomas Mackenzie,* and 

 he believes that the first squirrels entered the county across 

 Bonar Bridge. It was not, how^ever, until after the railway 

 bridge was built at Invershin, in 1869, that squirrels became 

 plentiful in the east of Sutherland. Squirrels are particularly 

 fond of running along roads or rides in forests, — or even in 

 open country, — or along rails or stone walls ; and I have often 

 met wdth squirrels far from wood in the low-lying carse lands 



* Vide Ptoc. Nat. Hist. Soc. of Glasgow, vol. iii., p, 229. Also "Scot. 

 Nat," vol. i.,p, 82. 



