PREFACE. vii 



youth, and to whose achievements, as an explorer and 



veyor of the Alps, Forbes in his letters bears BO 



rig a testimony. Mr. Keilly has, with much toil 



and ingenuity, made Forbes' journal, letters, and 



ings in a great measure tell their own story. The 



map of the Mer de Glace here given has been done 



under .Mr. Reilly's eye and guidance. 



3. It has fallen to my share to give some account of 



Forbes' early life, his professoriate, and his later years 



^t. Andrews. It would have been well, if this 



Id have been done by some one whose friendship with 



Forbes dated from at least his vigorous prime, for my 



c with him began only with his arrival in 



irews. Once begun", however, it soon became 



intimate and friendly. Though this late beginning of 



intercourse has been, no doubt, a disadvantage, yet I do 



not feel as if I had been a stranger to him even before 



our acquaintance commenced : so familiar to me were 



tin; scenes and some of the persons that surrounded 



irs. 



Of this tripartite work Chapters XIV. and XV. have 



writ t. -n by Professor Tait ; Chapters VIII., IX., 



and X. by Mr. Adams-l^iHy ; and (.'hapters I., II., III., 



IV., V, VI., VI!., XL, XII., and X11I. by me. Ea.-h 



writer is responsible for that part which lie himself lias 







.n nr put t<.-etliT, and for that alone. 



