REPORT OF COMMISSIONER OF FISH AND FISHERIES. LVII 

 D.— ABSTRACT OF CONTENTS OF APPENDIX. 



18. — ANALYSIS. 



In the general Appendix to this report will be found a number of 

 separate papers treating ujjon matters related to the work of the Fish 

 Commission. These are classified under four headings, as follows : 



A. — General. 



The first paper is by Lieut. Z. L. Tanner, and gives a thorough descrip- 

 tion of the Fish Hawk, illustrated by eighteen plates. This is followed 

 by an account of the Fish Hawk's work during the second year; and, 

 finally, by a list of patents issued in the United States during the year 

 relating to fish and fisheries. The latter is by Dr. R. G. Dyrenforth^ 

 chief examiner of the Patent Office. 



B.^-FlSHERIES. 



First under this head is a paper upon the mackerel fishery, by Messrs. 

 Goode, Collins, Earll, and Clark. It embodies all that the Fish Com- 

 mission has heretofore collected u^ion the subject, covering some 440 

 pages, and provided with a special index. An extra edition has been 

 issued, in pamphlet form, for distribution to persons interested in this 

 fishery. Two translations by Dr. Bean furnish the statistics of the Nor- 

 wegian fisheries for the year 1880. There is a review of the early shad 

 fisheries on the Susquehanna, by Harrison Wright ; a reprint from the 

 London Quarterly Review upon the fish-supply of London ; and a re- 

 port, by Charles W. Smiley, upon the extent to wbich fish-guano is used 

 as a fertilizer in the United States. 



C. — Natural History and Biological Research. 



Prof. H. E. Webster and Mr. James E. Benedict, of Union College^ 

 furnish a report on the worms collected by them at the Fish Commission 

 station at Proviucetown in 1879, which is accompanied by eight plates 

 and a special index. Messrs. John A. Ryder, and S. A. Forbes report 

 upon the food of fishes ; and Messrs. F. N. Clark, H. J. Rice, and John 

 A. Ryder upon experiments designed to retard the development of shad 

 eggs, with a view to facilitate their transportation. 



D. — Propagation of Food-Fishes. 



Under this head will be found detailed and statistical reports u])oii 

 the work of the United States Fish Commission in propagating and 

 distributing food-fishes, such as shad, whitefish, trout, and several kinds 

 of salmon, by F. N. Clark, Livingston Stone, Charles G. Atkins, and 

 Charles W. Smiley. 



