FROM HIS FATHER.

                                                                    Glenlair, 6th March 1851.
 

Simpson rages at present in the Electro-biology. Dr. Alison is very wroth about it. He says he has known two   cases of nervous people whose minds were quite disordered by it. I hope it is not in fashion at Cambridge, and at   any rate that you do not meddle with it. If it does anything, it is more likely to be harm than good; and if harm    ensue, the evil might be irreparable, so let me hear that you have dismissed it; you have plenty better things in hand   where you are.
 
 

                                                                    Glenlair, 29th April 1861.(?)(1851)

Explain the pendulum experiment to me. You used often to speak of the retardation of the Rotation of the Earth by   the friction of the tides.   What is the Phosphate of Lime theory of mental progress?

                                                                     Glenlair, 18th May 1851.

Do you like the Trig. lectures A?(13) Tacitus is not new to you. His style must be congenial to a deep,    half-sentence lecturer.Were you carrying your watch when you were upset in your funny? and if so, how did it agree with the   douking? I shall be glad to hear about the Pendulum. Who is Thacker, who asked you to his rooms to see it?

FROM HIS FATHER.

                                                                     Glenlair, 3d Novr. 1851.

How do you like and how do you profit by Hopkins' mode of driving? He should get one more pupil, and drive   16 in hand like Batty or Cook.

                                                                    Glenlair, 18th Novr. 1851.

You seem to have great gaieties with College Parties with Scientific Dons. Do you take notes of Stokes'   experiments on the bands of the Spectrum ? Will they be suitable for repetition in the garret of the old House?
 The clearing away a bank of weeds was a sly trick of the Trinity 4-oar, and I think Peterhouse and Sidney justified  in protesting. What tribunal is there to settle such matters?

 I copied from your letters plan and section and elevation of the Baskets for single stick, and committed the same   to the Davie.
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