REPORT OF THE SECRETARY. ie 
The occasion for this reprint of Mr. Langley’s papers, which was issued in 
August, is stated in the introduction. The articles were as follows: 
I. Story of Experiments in Mechanical Flight. By Samuel Pierpont Lang- 
ley. From the Smithsonian Report for 1897, pages 169-181 (with PI. I). 
Published originally in the Aeronautical Annual, 1897. 
II. The Langley Aerodrome. From the Smithsonian Report for 1900. pages 
197-216 (with Pls. I-VI). Slightly abridged from an article published origi- 
nally in McClure’s Magazine, June, 1897. 
Ill. The Greatest Flying Creature. By S. P. Langley (introducing a paper 
by F. A. Lucas). From the Smithsonian Report for 1901, pages 649-659 (with 
Pls. I-VI1). 
IV. Experiments with the Langley Aerodrome. By 8S. P. Langley. From the 
Smithsonian Report for 1904, pages 1138-125 (with Pl. I). 
1858. Contributions to the Life Histories of Fishes. By Theodore Gill. 
Volume I. 1904-1907. Reprints from Smithsonian Miscellaneous Collections, 
Smithsonian Annual Report, and Proceedings United States National Museum. 
Octavo. 323 pages (pagination as in originals), with 28 plates (numbered as 
in originals). 
The contents of this volume is as follows: 
I. A Remarkable Genus of Fishes—the Umbras. April 11, 1904. Smiths. 
Mise. Coll., Vol. 45, No. 14538. 
II. The Sculpin and its Habits. January 31, 1905. Smiths. Mise. Coll., Vol. 
47, No. 1552. 
III. The Life History of the Angler. May 6, 1905. Smiths. Mise. Coll., Vol. 
47, No. 1569. 
IV. The Tarpon and Lady-fish and their Relations. May 18, 1905. Smiths. 
Misc. Coll., Vol. 48, No. 1576. 
VY. The Life History of the Sea-horse. July 6, 1905. Proc. U. S. Nat. Mus., 
Vol. 28, No. 1408. 
VI. The Family of Cyprinids and the Carp as its Type. September 8, 1905. 
Smiths. Mise. Coll., Vol 48, No. 1591. 
VII. Flying Fishes and their Habits. October 5, 1905. Rep. Smiths. Inst., 
1904, No. 1629. 
VIII. Parental Care among ITresh-water Fishes. January 21, 1907. Rep. 
Smiths. Inst., 1905, No. 1688. 
IX. Some Noteworthy Extra-European Cyprinids. February 4, 1907. Smiths. 
Mise. Coll., Vol. 48, No. 1662. 
X. Life Histories of Toadfishes (Batrachoidids) compared with those of 
Weevers (Trachinids) and Stargazers (Uranoscopids). May 4, 1907. 
Smiths. Mise. Coll., Vol. 48, No. 1697. 
1859. Classified List of Smithsonian Publications Available for Distribution 
March, 1909. Octavo. Pages 39. 
1871. Smithsonian Mathematical Tables. Hyberbolic Functions. Prepared 
by George F. Becker and C. E. Van Orstrand. Octavo. Pages li, 321. 
The advertisement explains the purpose and scope of this publication: 
“Among the early publications of the Smithsonian Institution was a very 
important volume of meteorological tables by Dr. Arnold Guyot. They were 
so widely used by geographers and physicists, as well as by meteorologists, 
that when the fourth edition was exhausted it was decided to recast the entire 
work and publish three separate volumes—Meteorological Tables, Geographical 
Tables, and Physical Tables—each of which have now passed through several 
editions. 
“Tn the application of the data of these volumes to the study of natural phe- 
nomena certain mathematical fables beside those included in ordinary tables 
