38 BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, [bum 
Cross (Whitman). 
1 . A new Devonian formation in Colorado. 
Am. Jour. Sci., 4th ser., vol. 18, pp. 245-252, 1904. 
Describes character, occurrence, and geologic relations of Devonian strat 
the San Juan region of Colorado. 
2. An occurrence of trachyte on the Island of Hawaii. 
Jour. Geol., vol. 12, pp. 510-523, 1 fig., 1904. 
Describes the occurrence and character of a trachyte rock from the Islan 
Hawaii, gives chemical analyses of this and allied rocks and its norm, 
discusses its bearing upon the geologic history of the island, and the gen 
significance of the occurrence. 
Culbert (M. T.). 
1. The iron belt west of Hutton [Ontario]. 
Out. Bur. Mines, Rept, 1904, pt. 1, pp. 222-224, 4 pis., 1901. 
(Jives observations upon the geology of the region traversed and the oc 
rence of iron ores. 
Cumings (Edgar Roscoe). 
1. Development of some Paleozoic bryozoa. 
Am. Jour. Sci., 4th ser., vol. 17, pp. 49-78, figs. 1-83, 1904. 
Describes development stages in recent bryozoa and in the fossil genera Fe 
tella, Unitrypa, and Pplypora. 
Cumings (Edgar R.), Prosser (Charles S.) and. 
1. The Waverly formations of central Ohio. 
See Prosser (Charles S.) and Cumings (Edgar R. ), 1. 
Curtis (George Carroll). 
1. Evidence of recent differential movement along the New Engki 
coast. 
Abstract: Science, new ser., vol. 19, pp. 522-528, 1904. 
Cushing (H. P.). 
1. Memoir of Peter Noll. 
Geol. Soc. Am., Bull., vol. 15, pp. 541-544, 1 pi. (port.), 1904. 
Cushman (Joseph A.). 
1. A new footprint from the Connecticut Valley. 
Am. Geol., vol. 33, pp. 154-156, 1 pi., 1904. 
2. Pleistocene foraminifera from Panama. 
Am. Geol., vol. 33, pp. 265-266, 1904. 
Describes occurrence and gives a list of species identified, with notes as to 
occurrence of living forms of the same species. 
3. Notes on the Pleistocene fauna of Sankaty Head, Nantucket, Ma 
Am. Geol., vol. 34, pp. 169-174, 1904. 
Gives a section of the strata and a table showing the occurrence of the fosi i 
in the various beds, and discusses the relations of these faunas. 
4. Miocene barnacles from Gay Head, Mass., with notes on Balam 
proteus, Conrad. 
Am. Geol., vol. 34, pp. 293-296, 3 figs., 1904. 
