302 BIBLIOGRAPHY 



Neumayr, M. 



1889 Die Stamme des Thierreiches. Bd. I, Wirbellose Thiere. F. Temp- 

 sky, Vienna and Prague, 1889. 



Osborn, Henry Fairfield, 



191 2 The Continuous Origin of Certain Unit Characters as Observed by 



a Palaeontologist. Harvey Soc. Volume, November, 191 2, pp. 

 153-204. 



Pirsson, Louis V., and Schuchert, Charles. 



1915 A Text-Book of Geology. Part I, Physical Geology, by Louis V. 

 Pirsson. Part II, Historical Geology, by Charles Schuchert. 

 John Wiley & Sons, New York; Chapman & Hall, London, 191 5. 



Russell, Henry John, and Hutchinson, Henry Brougham. 



1909 The Effect of Partial Sterilization of Soil on the Production of Plant 

 Food. Introd. and part I. Jour. Agric. Set., October, 1909, pp. 

 111-144. 



1913 Ibid. Part II. Jour. Agric. Sci., March, 1913, pp. 152-221. 



Schuchert, Charles. 



1914 The Climatic Factor as Illustrated in Arid America (with Hunting- 



ton, Douglass, and KuUmer). See Huntington. 



1915 A Text-Book of Geology (with Pirsson, Louis V.). See Pirsson. 



Waagen, W. 



1869 Die Formenreihe des Ammonites subradiatus, Versuch einer palaon- 

 tologischen Monographic. Geognostisch-palaontologische Bei- 

 trage, herausgegeben . . . von Dr. E. W. Benecke, Bd. II, pp. 

 179-257 (Heft II, S. 78). R. Oldenbourg, Munich, 1869. 



Walcott, Charles D. 



1899 Pre-Cambrian Fossiliferous Formations. Bull. Geol. Soc. Amer., 

 April 6, 1899, pp. 199-244. 



191 1 Cambrian Geology and Palaeontology, vol. II, no. 5. Middle Cam- 



brian Annelids. Smithsonian Misc. Colls., vol. 57, no. 5, Septem- 

 ber 4, 191 1, pp. 109-144. 



191 2 Cambrian Geology and Palaeontology, vol. II, no. 6. Middle Cam- 



brian Branchiopoda, Malacostraca, Trilobita and Merostomata. 

 Smithsonian Misc. Colls., vol. 57, no. 6, March 13, 191 2, pp. 145- 

 228. 



Wasteneys, Hardolph. 



191 5 On the Identity of Heliotropism in Animals and Plants (with Loeb, 



Jacques). See Loeb. 

 191 5 The Identity of Heliotropism in Animals 9.ftd, Plants (with Loeb, 



Jacques). Second note. See Loeb. 



