Replies to several queries about papers of JH. JH describes the accidental production of some interesting copper salt crystals.

Is trying to help RF understand the difference between the dynamics of solid bodies moving over each other and the dynamics of moving fluids, both water and air.

Is willing to assist in obtaining letters of introduction for WL's projected trip to Malta.

Points out deviations from policies recommended in 1848 by Mint Commission. Supports consolidation of supervisory positions. Protests C. E. Trevelyan's idea that JH's scientific pursuits in spare time as Master of Mint must be directed to public projects.

Is concerned about the possibility that the observatory at Altona will be discontinued or moved.

The balances in the Mint are not adequate for the work WM wants to do.

Identifies WM as a committee member for the R.S.L.; raises the question of standard weights in relation to weighing gold bullion.

Asks GP to participate in the marriage ceremony of JH's daughter Caroline.

Suggestions and diagrams for projecting sound great distances by means of small arms and parabolic reflectors.

RB's certificates were issued in 1825 by now-abolished Mint Board. Explains reorganized administration of Mint.

[Marked 'Private.'] JH found passage in Treasury's letter to Benedetto Pistrucci that could contradict the denial by Lord Maryborough [William Wellesley-Pole] of Pistrucci 's claim to lifetime job and salary at Mint.

[Marked 'Private.'] Found written evidence of the denial in 1825 by Lord Maryborough [William Wellesley-Pole] of lifetime tenure at Mint for Benedetto Pistrucci. Suggests contacting [W. R.] Hamilton for clarification.

Returns letter from C. E. Trevelyan. Awaits final conclusion in difficult case of Benedetto Pistrucci.

Moneyer's former policy has resulted in two pay scales for Mint employees. Asks help in standardizing pay scale. Repair cost for air pump may be double original estimate. Treasury rejected JH's appeal on behalf of F. R. Brande; plans to appeal to Chancellor of Exchequer.

Instructions for assaying Indian coins.

JH made clear on 13 Mar. that HF's position in reorganized Mint would be that of newly entering junior clerk and that F. R. Brande's position warranted more seniority.

Will give every consideration to case of Benedetto Pistrucci, but Engraving department is long overdue for changes to bring it into conformity with all other departments in reorganized Mint.

Private. If JH did try to pay Benedetto Pistrucci as 'Chief Medallist,' Audit office would refuse to approve it, because that position no longer exists at Mint. No one opened walls of Pistrucci's studio for repairs; workmen simply requested permission to examine them to see if repairs were needed. Pistrucci was never denied access to dies for Waterloo Medal; he asked once for them when keys were not available and never came back.

Private. Benedetto Pistrucci appealed to Lord Derby [E. G. G. S. Stanley]. If consulted, JH will recommend that former distinctions within Engraving department be abolished. If Pistrucci insists on using his former title, he may no longer do so as an officer of the Mint. Will approve pension if Pistrucci chooses to retire.

Grateful for HH's advice on dealing with Mr. Cumberland. JH spoke to [W. H. Barton] about Cumberland's claim to seniority over R. F. Suft. Encloses letter from Bank of England that indicates extraordinary work for Mint in near future. Recent production of coins. Suggests stronger series of checks on piecework of all men and officers at Mint.