3. My mind has been clearer, since I commenced the experiment to which you allude, than before; but I doubt whether I can better endure a "laborious investigation." A little rest or exercise, perhaps less than formerly, restores vigor. I am sometimes tempted to break my day into two, by sleeping at noon. But I am not so apt to be cloyed with study, or reflection, as formerly.

4. Several. 1. An eruptive complaint, sometimes, at one period of my life, very severe. 2. Irritation of the lungs; probably, indeed most certainly, incipient phthisis. 3. Rheumatic attacks, though they had never been very severe.

The eruptive disease, however, and the rheumatic attacks, are not wholly removed; but they are greatly diminished. The irritation at the lungs has nearly left me. This is the more remarkable from the fact that I have been, during almost the whole period of my experiment, in or about Boston. I was formerly somewhat subject to palpitations; these are now less frequent. I am also less exposed to epidemics. Formerly, like other scrofulous persons, I had nearly all that appeared; now I have very few.

You will observe that I merely state the facts, without affirming, positively, that my change of diet has been the cause, though I am quite of opinion that this has not been without its influence. Mental quiet and total abstinence from all drinks but water, may also have had much influence, as well as other causes.

5. Very few colds. Last winter I had a violent inflammation of the ear, which was attended with some fever; but abstinence and emollient applications soon restored me. In July last, I had a severe attack of diarrhœa unattended with much fever, which I attributed to drinking too much water impregnated with earthy salts, and to which I had been unaccustomed. When I have a cold, of late, it affects, principally, the nasal membrane; and, if I practice abstinence, soon disappears. In this respect, more than in any other, I am confident that since I commenced the use of a vegetable diet I have been a very great gainer.

6. The experiment was fully begun four years ago last summer; though I had been making great changes in my physical habits for four years before. For about three years, I used neither flesh nor fish, nor even eggs more than two or three times a year. The only animal food I used was milk; and for some long periods, not even that. But at the end of three years I ate a very small quantity of flesh meat once a day, for three or four weeks, and then laid it aside. This was in the time of the cholera. The only effect I perceived from its use was a slight increase of peristaltic action. In March last, I used a little dried fish once or twice a day, for a few days; but with no peculiar effects. After my attack of diarrhœa, in July last, I used a little flesh several times; but for some months past I have laid it aside entirely, with no intention of resuming it. Nothing peculiar was observed, as to its effects, during the last autumn.

7. I never used a large proportion of animal food, except milk, since I was a child; but I have been in the habit, at various periods of my life, of drinking considerable cider. For some months before I laid aside flesh and fish, I had been accustomed to the use of more animal food than usual, but less cider; though, for a part of the time, I made up the deficiency of cider with ale and coffee. For several months previous to the beginning of the experiment, I had drank nothing but water.

8. Rather less. But here, again, I fear I am in danger of attributing to one cause what is the effect of another. My neglect of exercise may be more in fault than the rice and bread and milk which I use. Still I must think that vegetable food is, in my own case, less aperient than animal.

9. In regard to students, my reply is, Yes, most certainly. So I think in regard to laborers, were they trained to it. But how far early habits may create a demand for the continuance of animal food through life, I am quite at a loss for an opinion. Were I a hard laborer, I should use no animal food. When I travel on foot forty or fifty miles a day, I use vegetable food, and in less than the usual quantity. This I used to do before I commenced my experiment.

10. I use bread made of unbolted wheat meal, in moderate quantity, when I can get it; plain Indian cakes once a day; milk once a day; rice once a day. My plan is to use as few things as possible at the same meal, but to have considerable variety at different meals. I use no new bread or pastry, no cheese, and but little butter; and very little fruit, except apples in moderate quantity.