238 REPORTS ON INVESTIGATIONS AND PROJECTS. 



agate. It is hoped that this new stand will give increased accuracy in the 

 dip work, as it affords a means of eliminating effects from errors of level. 

 Six theodolite magnetometers of the light portable type are now under con- 

 struction. A dividing engine constructed by the Societe Genevoise was re- 

 ceived in December 191 1 and installed during January 1912, thus making 

 it possible to construct an instrument practically entirely in our shop. A 

 16-inch engine lathe has been purchased and added to the tool equipment. 

 The construction of auxiliary instruments and the overhauling and repairing 

 of field outfits have been carried out as necessary. 



PERSONNEL. 



The personnel of the office force during the year has been as follows: 

 L. A. Bauer, Director; N. E. Dorsey, research associate, from March 16; 

 J. A. Fleming, magnetician in charge of office and shop ; H. W. Fisk, mag- 

 netician; J. P. Ault, magnetician, to March 21 ; D. W. Berky, magnetic ob- 

 server, March 1 to 14 ; R. H. Gait, magnetic observer, April 1 to September 

 23; C. W. Hewlett, magnetic observer, June 1 to August 14; D. MacKenzie, 

 magnetic observer, February 21 to March 27; A. D. Power, magnetic ob- 

 server, May 15 to June 28; H. E. Sawyer, magnetic observer, from July 1 ; 

 H. R. Schmitt, assistant magnetic observer, January 25 to March 27 ; J. H. 

 Millsaps, bookkeeper and stenographer; H. D. Harradon, translator and 

 stenographer, from April 7; Emma L. Beehler, stenographer, to March 31, 

 when she resigned; R. R. Mills, clerk, from December 1, 191 1 ; J. A. Wid- 

 mer, chief instrument-maker; E. K. Skonberg, second instrument-maker; 

 F. R. Sommer, mechanician, from November I, 191 1 ; J. A. Donaldson, mes- 

 senger and apprentice, to July 31. 



