3 Third Rates

4 Fourth Rates

TSl Total Sailing

TSc Total Screws

TIC Total Iron Clads.

TSW Total Side Wheels.

TV Total No. of Vessels in the U.S. Navy

Year.SAILING VESSELSSTEAM VESSELSTV
1234TSlScrewsIron CladsSide Wheels
1234TSc1234TIC1234TSW
18627101965101516296911955376532194051112383
1863471283106615249614146376532105285149449
1864351684108123537129213955647421652152222617
186536168410923324216826536656713856160236681
18661616194223311764135376536934472074320
18672615153820181553106366476234431767273
1868691253219211743100744135534231242229
18696911531192116409674383523111924203
1870. .2171130524194088. .654051. .411217186
1871. .2171029324184287. .464050. .4. .711177

The following Table, prepared from the official Navy Register for January of each year, by Capt. G. H. Preble, U.S. Navy, exhibits the number of midshipmen graduates, and midshipmen attached to the Naval Academy, with their classification and the number of resignations, deaths, and dismissals, from 1851 to 1871, inclusive.

[TABLE VIII. Midshipmen in Naval Academy.]