File:John Noel with filming equipment, 1922.jpg

Summary
Stated at https://archive.org/details/assaultonmountev00bruc
 * Other information:

Publisher: New York : Longmans, Green Year: 1923 Possible copyright status: NOT_IN_COPYRIGHT

Probably still in copyright in UK. Bruce died 1939, Noel died 1989

Note: because the book was published simultaneously in US and UK, Commons might regard it as a US work and not a UK work and so might regard it as PD, no valid notice. (Or Commons might not).