42 Sketching and Photography 
reason that I have been far too busy all my life to find time to 
devote to that absorbing subject. Would it were otherwise ! 
For work on moor or marsh there is no limit to the size and 
weight of the camera and obviously in such cases all the modern 
luxuries of reflex cameras, focal-plane shutters, tele-photo lenses, 
PHOTOGRAPHING A NEST. 
rigid stands &c. can be brought to bear. Such weighty and 
cumbrous contrivances are however entirely unsuited to moun- 
taineering, 
Those whose experiences are limited to home birdsnesting or 
cliff or big tree climbing. 
to a few casual trips abroad have frequently urged me to adopt 
