Preliminary report on the use of a tuning fork in gravity measurements

it were possible to use a tuning fork as a standard of time, the process of making gravity observations would be much quickened. Two causes of variability in the tuning fork are to be considered: temperature and amplitude. Temperature can be controlled, or at least allowed for, more readily than amplitude can. Forks of various materials have been studied, and it has been found that magnesium appears to be a promising material. In order to follow up this question, it is necessary to push the rating of a fork much farther than has been the customary practice.