APPENDIX. 275 



of their ornaments of Arundo Vhras^mitcs^ 

 Lyshnachia thyrsifiora, Galium boreale, 

 and Cai'ex globularis. Here is the true 

 station of Titssilago nivea (Wilid, Sp. PL 

 V. 3. 1970.) The last beaver-houses are 

 seen in the rivulets, and no Pike nor Perch 

 is to be found in the lakes higher up. The 

 boundary of the Spruce Fir is 3200 feet 

 below the line of perpetual snow, and the 

 mean temperature is about 3" of Celsius's 

 thermometer (37J of Fahrenheit). 



2. Scotch Firs (Pinus sylvestr is) are still 

 found, but not near so tall as in the lower 

 country. Their stems here are low, and 

 their branches widely extended. Here are 

 seen the last of Ledum palustre, Salix 

 pentandra, Veronica .serpylUfolia, Sec. The 

 bogs have already a very steril appearance. 

 Near the utmost boundary of the Scotch Fir 

 grows Pliaca alpina. Higher up are hardly 

 any Bears to be met with, and the berries of 

 Vaccinium Myrtillus (the Bilberry) do not 

 ripen well. Salmo Lavaretus (the Gwi- 

 niad), and S, Thymatlus (the Grayling), 

 T 2 



