327 
3tt flftcntoriam 
JOHN WESLEY JUDD, C.B., L.L.D., F.R.S,, F.G.S. 
(1840-1916.) 
'HE death, in fulness of years, of Professor J. W. Judd, which took 
1 place on March 3rd, 1916, leaves a memory of a wide range of 
observational work, very great powers of exposition, and a kindly 
spirit constantly made manifest in the encouragement and advancement 
of younger men. The biography and bibliography issued in his lifetime 
in the Geological Magazine (1905, p. 385) renders a detailed account 
of his career unnecessary. The present notice is a tribute to his con- 
tributions to our knowledge of the stratigraphy of Yorkshire and of 
neighbouring districts, and an expression of the loss felt throughout 
the British Isles by those privileged to receive his advice or to work 
with him in the laboratory and the field. 
After a varied apprenticeship in science as a schoolmaster and an 
analyst in Sheffield steel works, the result of a railway accident forced 
Judd towards an occupation that kept him in the open air. His first 
geological paper appeared in the Quarterly Journal of the Geological 
Society of London in 1867, " On the Strata which form the base of the 
Lincolnshire Wolds," in which he was able to show that marine repre- 
sentatives of the Neocomian beds of the Continent occur in England. 
In two vertical sections, he compared the strata at Louth in Lincoln- 
shire with those of Speeton Cliff. In the same year he was invited to 
revise the Jurassic strata in Northamptonshire, Lincolnshire and 
Rutlandshire for the Geological Survey. A memorable paper on " The 
Speeton Clay " appeared in 1868 {Quarterly Journal of the Geological 
Society, vol. XXIV., p. 218),followedin 1870 by one on " The Neocomian 
strata of Yorkshire and Lincolnshire, with notes of their relation to 
beds of the same age throughout Northern Europe " {Ibid., vol. XXVI., 
p. 326). A description of " The anomalous growth of certain fossil 
oysters " {Geological Magazine, 1871, p. 355) has an interest for 
geologists in Yorkshire, one of the mxost remarkable specimens, a 
Placunopsis bearing the impression of Goniomya, having been obtained 
from the Cornbrash beds of Scarborough. 
Judd's memoir on " The Geology of Rutland, and parts of Lincolr, 
etc.," in explanation of Sheet 64 of the Geological Survey map, a work 
pleasantly illustrated by Frank Rutley, did not appear until 1875. 
