TO C. J. MONRO, Esq.

                                                                        Glenlair, 14th October 1856.

     . . . During September I had Lushington, Maclennan, and two cousins "Cay" here. Now I am writing a solemn    address or manifesto to the Natural Philosophers of the North, which I am afraid I must reinforce with coffee  and anchovies, and a roaring hot fire and spread coat-tails to make it all natural. By the way, I have proved that if   there be nine coefficients of magnetic induction, perpetual motion will set in, and a small crystalline sphere will   inevitably destroy the universe by increasing all velocities till the friction brings all nature into a state of  incandescence, or as H—— would say, Terrestrial all in Chaos shall exhibit efflorescence.