Page. 
Theory of the transit micrometer 455 
Short history of the transit micrometer 45^ 
Description of Coast and Geodetic Survey transit micrometer 45$ 
Test of Coast and Geodetic Survey transit micrometer 460 
Principal direct results 462 
Relative personal equation 4^5 
Accuracy as shown by the residuals in time sets 4^9 
Accuracy of bisection of a star 47 2 
Most favorable speed of driving heads 474 
Number of records needed for each star 475 
Influence of errors of right ascension 47^ 
Number of nights necessary for the required degree of accuracy 476 
Summary of conclusions ' 47$ 
Literature of the transit micrometer 479