It was indicated to me that these spirits belong to the province of the little thymus gland, because I had had the general notion regarding the use of that little gland, that it was also of service to little children, imparting to the neighboring organs by its secretion very sweet and pleasant sensations of life. 1748, 27 February. The same spirits are also in a great turmoil, and when they are being whirled around, sustain it, as may be seen [in the description] of the thymus.* * See The Animate Kingdom II, Chapter VI.