1859, January 18.
Dear Sir
The Astronomer Royal2 is not at home, but I expect his return in a day or two, when I have no doubt, he will send you an answer to your inquiry3 respecting models for illustration of lectures on Astronomy.
I am, | dear Sir, | Your faithful servant, | Robert Main
John Tyndall Esq[ui]r[e].
RGO MS.RGO 6/408.380
Please cite as “Tyndall1584,” in Ɛpsilon: The John Tyndall Collection accessed on