GSL/L/R/6/142
Letter from Alexander ROBERTSON
2 Mar 1841
LDGSL/613/4/54/1
Watercolours of the teeth of Hybodus undulatus and Hybodus dubius
1840
LDGSL/614/1/136
Watercolour of Diplopterus Robertsoni Agassiz
1841
LDGSL/630
Watercolour of a humerus from Saurodesmus robertsoni Seeley