Plans to sell JH's property at Upton, including tenement Holloway occupies, to neighbors.
Plans to sell JH's property at Upton, including tenement Holloway occupies, to neighbors.
Sends small lens. Its components neither parallel nor concentric; contains water. Suggests new polishing method. Estimates 4-foot lens would cost £7-£8. [JH Note: Tested and returned lens. Noted advantages and deficiencies and suggests improvements. Listed others who built similar lenses.]
Lens safely returned. Not aware of lenses in 1851 Exhibition or of C. F. Sturm's solid lenses. Notes advantages of plate glass. Offers to make three foot by three foot square lens. Recognizes limitations for use in astronomy; hopes for other applications.
Happy to hear that [new Sydney mint] is going well. JH confined with painful illness since Mar. 1855; still unable to walk or stand upright without support. Aluminium may be used in coins, but JH doubts it will replace iron in pots and pans. War is ended, but people worry about further Russian aggression.
Sending his completed universal alphabet with comments.
Thanks for the check. Will search for the deeds.
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