﻿— 546 — 



Wúgner R. Fischer, Ferdinaiid. 



Fahresbericht von Chenice. — Leipzig, 1892. — O. 351. 



Wagner, Paul. 



El. Nitrato de Soda. — Su importancia i empleo como abono. — Dar- 

 mstadt, 1886. — L. 364. 



Walcott, Charles Doolittle. 



Paleontology of the Eureka District. — (Monographs of the U. S. 

 Geolog. Surv. VIII). — i vol. — Washington, 1884. — O. 5. 



Walcott, Charles Doolittle. 



Sixteenth annual report of the U. S. Geolog. Surv. to the secretary 



, of the interior, 1894-95. — In four parts. — Part I. Director's report and 



_ papers of a theoretic nature. — II. Papers of an economic character. — 



III. Mineral re.sources of the U. S. 1894, metallic producís. — IV. Non- 



metallic products. — Washington, 1895. — O. 51. 



Walcott, Charles D. 



Sixteenth annual report of the U. S. Geolog. Survey. — II Papers of 

 an economic character. — i vol. — Washington, 1895. — O. 53- 



Walcott, Charles D. 



The mineral ressources of the U. S. 1895 non metallic products, 

 except coal. — O. 54. 



Walcott, Charles D. 



Seventeenth annual report of the U. S. Geolog. Surv. to the secre- 

 - tary of the interior 1895-96. — Part III (Mineral resources and metallic 

 products and coal). — Washington, 1896. — I. 6. 



Walcott, Charles Doolittle. 



Correlation papers. — Cambrian. — W^ashington, 1891. — K. 117. 



Walcott, Charles. 



The Cambrian roks ofPennsylvania. — Washington, 1896. — K. i5on. 



Walcott, Charles D. 



Seventh annual report of the U. S. Geolog. Surv. to the secretary 



