PORTRAITS 



Reproduced from a photograph taken by the late Dr Adamson of St Andrews. Date, 1870. 



Frontispiece 



Peterhouse Group of Graduates; from a faded photograph. P. G. Tail and W. J. Steele are 

 the first and third, reckoning from the left. Date, 1852 . . . To face page II 



Reproduced from photograph of Professor Tail and Mr Thomas Lindsay, taken in the University 

 Retiring Room by Rev. L. O. Critchley, M.A., then a laboratory student. Date, 1895, 



To face page 89 



Reproduced from photograph by Mr Marshall Wane, Edinburgh. The photograph was taken 

 for the Album of portraits which the Contributors to the Challenger Expedition Reports 

 presented to Sir John Murray in 1895 To fate page 181 



Reproduced from the Replica Portrait painted by Sir George Reid and placed in the Hall 

 of Peterhouse, Cambridge. The original Portrait in the Council Room of the Royal Society 

 of Edinburgh was painted in 1891. The mathematical expressions on the board in the 

 back-ground exist only in the Peterhouse Replica, and are copied from the early portrait 

 of 1882. They refer to the Mirage problem ..... To face page 325 



ADDENDA AND CORRIGENDA 



p. 22, footnote. In connection with early laboratories, those begun by Professor Clifton in Oxford, 

 and by Professor Grylls Adams in King's College, London, should also have been mentioned. 



p. 48, 1. 2 from fool for "rauschend" read "rauchend." 

 p. 96, 1. 6 from top for "Reader in" read "Professor of." 



