William Smaill Photo Album – Page 111
William Smaill Photo Album – Page 112
William Smaill Photo Album – Page 115
William Smaill Photo Album – loose page
Permeability test apparatus
GWWD Board of Administration Minutes, numbers 120-123
GWWD Board of Administration Minutes, numbers 106-119(3)
GWWD Board of Administration Minutes, numbers 96-99
GWWD Board of Administration Minutes, numbers 100-105(a)
GWWD Board of Administration Minutes, numbers 86-95
GWWD Board of Administration Minutes, numbers 78-84
GWWD Board of Administration Minutes, numbers 62-64
GWWD Board of Administration Minutes, numbers 65-73
GWWD Board of Administration Minutes, numbers 56-61
GWWD Board of Administration Minutes, numbers 49-55
GWWD Board of Administration Minutes, numbers 38-48
GWWD Board of Administration Minutes, numbers 32-37
GWWD Board of Administration Minutes, numbers 26-31
GWWD Board of Administration Minutes, number 25
GWWD Board of Administration Minutes, numbers 21-24
