Explanation of Estimates for Gravitation Party 1880-81
Baltimore April 10, 1880

Sir,

In explanation of the estimates enclosed herewith, I beg to state that the somewhat large amount charged for instruments is due 1st to my being abroad; 2nd to a desire to construct at least a model of Faye's proposed instrument, and to experiments on an improved method of recording times of passage of the pendulum. The estimates present a considerable reduction on those of this year but if I can have this year's amount it could certainly be well expended.

C. S. Peirce
Assist.

Explanation of Estimates for Gravitation Party 1880-81
Baltimore April 10, 1880

Sir,

In explanation of the approved estimates for the current year, I beg to state that on March 31st, there remained unexpended the sum of $1710, being $200 less than 1/4 of the amount approved. The current month must in any case be and expensive one, owing to heavy transportation bills etc. and must give expenses of $650 independent of those incidental to the European expedition. There will then be Mr. Farquhar's salary for two months to subtract. For the expedition abroad, we shall require additional expenses in transporting instruments, the travelling expenses, and contingencies. On the other hand, there will be some savings on the minor salaries. One month might be allowed to pass without any copyist, that person to be