APPENDIX B. 
313 
seems a fact worth recording. Mr. Henderson could not give 
us even any conjecture why this change should have taken 
place. 
Regarding the stocking of the lochs near Dunnet Head with 
trout, Mr. John Gunn of the " Challenger Expedition Office " 
writes us : — 
" I got a friend to apply to Mr. Brims, factor for Rattar, who 
says that the present Mr. Traill of Rattar put trout into the 
loch nearest the lighthouse, some four or five years since, the 
fry being taken from various lakes throughout Caithness. Mr. 
Traill's brother lately fished this loch with fair success, a few of 
the trout being upwards of lb. in weight." May 21st, 1887. 
