130 BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, [bull.; 
Williams (I. A.), Beyer (S. W.), and. 
1. Technology of clays. 
See Beyer (S. W.) and Williams (I. A.), 1. 
2. The geology of clays. 
See Beyer (S. W.) and Williams (I. A.), 2. 
Willis (Bailey). 
1. tjberschiebungen in den Vereinigten Staaten von Nordamerika. 
Congr. geol. intern., Compte rendu IX. Sess., pp. 529-540, 2 figs.. 1904. 
Defines various kinds <>f overthrust, and discusses their origin and ti 
relations. 
Williston (S. W.). 
1. The relationships and habits of the Mosasaurs. 
Jour. Geol., vol. 12, pp. 43-51, 1904. 
Discusses taxonomy in the vertebrates, and the phylogeny, classification, a 
mode of life of extinct saurians. 
2. Wilbur Clinton Knight. 
Am. Geol., vol. 33, pp. 1-6, pi. i (por.) 1904. 
Includes a bibliography of the scientific papers published by the subjesl 
the sketch. 
3. The lingers of pterodactyls. 
Geol. Mag., dec. 5, vol. 1, pp. 59-60, 1904. 
4. The stomach stones of the plesiosaurs. 
Science, new ser., vol. 20, p. 565, 1904; 
5. Notice of some new reptiles from the tipper Trias of Wyoming. 
Jour. Geol., vol. 12, pp. 688-697, 6 figs., 1904. 
Willmott (A. B.). 
1. The contact of the Archean and post-Archean in the region of t\ 
Great Lakes. 
Jour. Geol., vol. 12, pp. 40-42, 1 pi., 1904. 
Describes the character of the line of contact of the Archean and overly 
formations in the Great Lakes region in Canada and discusses the origir 
this character. 
2. The exploration of the Ontario iron ranges. 
Can. Mg. Rev., vol. 2:5, pp. L54-156, L904. Can. Mg. Inst., Jour., vol, 
Advance separate. 1:5 pp., L904. 
Describes the general geology of the iron ranges, the character of the roc 
and the occurrence of iron ore deposits. 
Wilson (Alfred W. G.). 
1. Trent River system and St. Lawrence outlet. 
Geol. Soc. Am., Bull., vol. 15, pp. 211-242, 6 pis., 1904. 
Describes physiographic features of the country east and northeast of L; 
Ontario, and discusses their bearing upon the pre-Glacial drainage of t 
region. 
