ACKNOWLEDGMENTS. 211 



— Fossil Forests of the Volcanic Tertiary Formations of the Yellowstone National 

 Park. 8 pp. (125 -132), 111.— Bull. U. S. Geol. and Geog. Survey, Vol. V, No. i, 

 Feb. 28, 1879. 

 Houston, Professor Edwin J. 



— A Huge Boulder. 2 pp., 111. — Journal Franklin Institute. 

 Hubbard, Lucius L. 



— Beitrage zur Kenntniss der Nosean-fiihrenden Auswiirflinge des Laacher Sees. 

 50 pp., 3 pL, Nov., 1886. 

 Huxley, Thomas H., LL.D., F.R.S. 



— The Crocodilian Remains found in the Elgin Sandstones, with remarks on the 

 Ichnites of Cummingstone. 58 pp., with geol. map and 12 accompanying plates. — 

 Memoirs of the Geological Survey of the United Kingdom, 1877. 

 Hyatt, Alpheus. 



— Jura and Trias at Taylorville, California. 17 pp. (396-412). — Bull. Geol. 

 Soc. Am., Vol. Ill, July, 1892. 



— The Jurassic and Cretaceous Ammonites, collected in South America by Pro- 

 fessor James Orton, with appendix upon the Cretaceous Ammonites of Professor 

 Hartt's collection. 8 pp. (364-372). — Proc. Bos. Soc. Nat. Hist., Vol. XVII, 

 Jan. 20, 1875. 



— Remarks on the Porph3'ries of Marblehead. 5 pp. (220-224). — Proc. Bos. 

 Soc. Nat. Hist., Vol. XVIII, Jan. 19, 1876. 



— Sponges considered as a distinct Sub-Kingdom of Animals. 6 pp. (12-17). — 

 Proc. Bos. Soc. Nat. Hist., Vol. XIX, Nov. i, 1876. 



— Carboniferous Aphalopods., 111. 28 pp. (329-356)-. Geol. Sur. of Texas. — 

 Second An. Rep., 1890. 



— Genetic Relations of Stepanoceras. 41 pp. — Proc. Bos. Soc. Nat. Hist., Vol. 

 XVIII, June 7, 1876. 



— Biological Relations of the Jurassic Ammonites. — Proc. Bos. Soc. Nat. Hist., 

 Vol. XVII. 2 pp. (240-241), Dec. 16, 1874. 



— On Reversions among the Ammonites. 22 pp., Oct. 5, 1 870. 



— Values in Classification of the Stages of Growth and Decline, with Proposi- 

 tions for a New Nomenclature. — American Naturalist, Oct., 1888. 17 pp. (Pp. 

 872-888). 



— Genetic Relations of the Augulatidte. — Proc. Bos. Soc. Nat. Hist., Vol. XVII. 

 19 pp. (Pp. 15-33). May 20, 1874. 



— Abstract of Larval Theory of Origin of Tissue. — Am. Jour. Sci., Vol. XXXI, 

 May, 1886. 16 pp. (Pp. 332-347)- 



— Geology and Palaeontology. The Protoconch of Cephalopoda, i p., 1884. 



— The Larval Theory of the Origin of Cellular Tissue. 5 pp.. May, 1884. 



— Observations on Polyzoa Sub-Order Phylactolasmata, with nine plates and 

 numerous cuts. — From Proc. Essex Institute, Vols. IV and V. 103 pp., 1866-68. 



— Larval Theory of the Origin of Cellular Tissues. — Proc. Bos. Soc. Nat. Hist., 

 Vol. XXIII, March 5, 1884, Synopsis I-IV. 119 pp. (45-163). 



— Genesis of the Aristida;, 14 plates. 238 pp. -|-xi. 111. — Memoirs of the 

 Museum of Comparative Zoology, Harvard College, Vol. XVI, No. 3, Nov., 1889. 

 Iddings, Joseph Paxson (and Carl Barus). 



— Note on the Change of Electric Conductivity Observed in Rock Magmas of 

 . Different Composition on Passing from Liquid to Solid. 8 pp. (242-249). 111. — 

 Am. Jour. Sci., Vol. XLIV, Sept., 1892. 



— The Eruptive Rocks of Electric Peak and Sepulchre Mountain, Yellowstone 

 National Park. 86 pp. (577-664), 8 pi., geol. map, — Twelfth An. Rep. U. S. 

 G. S., 1890-91. 

 Jenssen, Ernst. 



— Beitrage zur Krvstallographischen Kenntniss organischer Verbindungen. 

 32 pp.. 111., 1889. 

 Johnson, Lawrence C. 



— The Grand Gulf Formation. — Science, Sept. 9, 1892. 



— Grand Gulf Formation. — Science, Oct. 28, 1892. 



