242 
ANNUAL REPORT, 1879 - 80 . 
Coleoptera of Alpine Eegions of Rocky Mountains*" 
Studies on N.A. Pyralidse...... 
Palaeontological Papers........ 
Dark Shale, discovered below Devonian Limestone 
Mineralogy of Nevada ........ 
Field Notes on Birds, &c... ..... 
Products of Erosion in Colorado .... 
Fossil Insects of Green River Shales. }- 
Remarks on Laramie Group ...... 
American Sciuri, or Arboreal Squirrels............ 
Phaenogamous and Vascular Cryptogamous Plants 
Collection of Fishes in Dakota and Montana. 
Notes on the Aphidiae of the United States ...... 
Report of Fossil Flora ... 
3 Geological Survey Maps .._ 
Tablas Para La Resolucion De Problemas*" 
Balisticos ...... 
Tratado De Calculo De Probabilidades.. }- 
Diccionario Tecnologico Ingles-Espanol .. 
Tratado De Balisticaand Atlas.J 
Smithsonian Miscellaneous Collections, Vols.) 
XIII, XIV, and XV. .. ..... [ 
Smithsonian Report, 1877 .. ) 
Dr. F.V. Hayden, U.S. Geologist, 
Officers, Academy of Artillery, 
Segovia. 
The Council. 
Books, 8fC' } purchased, 
British Entomology. 16 vols. in 8. Curtis. 
The Ibis. Vol. III. Nos. 10, 11, 12. 
The Birds of Europe. Parts 73 to 76. 
The Elements of Modern Tactics. 
8 Photographic Views of the Island of Malta, taken by the late Lt.-Col. C. E. Burt. 
Treatise on Natural Philosophy. Thomson and Tait. 
Palseontographical Society Papers. Vol. XXXIII, 
J ahresb ericlite. 1878. 
Standing Orders, Woolwich District, 1879. 
The Birds of New Guinea. Parts 6 to 10. 
The Birds of Asia. Part 31. 
Application of Physical Forces, by A. Guillemin, edited by Lockyer. 
Military Handbooks, edited by Lt.-Col. G. B. Brackenbury. Military Sketching 
and Reconnaissance. 
A Monograph of the Hornbills. Part 6. 
Regulations for Engineer Department. 
Tactique, par Guichard. 3 vols. 
Guerre d’Orient en 1876-7. 3 vols. 
Cours d’Art Militaire. 
The Birds of Ceylon. Part 2. 
Euclid and his Modern Rivals. 
Die Preussische Reiterei von 1806 bis 1876. 
Contes Fantastiques, par E. Chatrain. 6 copies. (For the use of the French Class.) 
Encyclopaedia Brittanica. Vol. X. 
Handbuch fur unter Offiziere der K.K, Festungs Artillerie, von Semrad and 
Sterbenz. 1 vol., 1879. 
