But Haller developed a clear case of nostalgia, and after being fêted by the nobility, honored by almost every monarch in Europe, and receiving every honor that universities and philosophic societies confer, he resigned from his chair in Göttingen and returned to Berne, to his _fatherland_. Here, amid his old home surroundings, he worked for twenty years more at the same tremendous rate, discharging diverse duties of state and private citizenship, founding and promoting industries and asylums, and serving constantly upon commissions of all kinds. While thus engaged appeared that phenomenal work, his great Treatise on Physiology, so full of original observations that it has been stated that should discoveries which have been re-discovered since Haller be collected they would fill several quarto volumes. The physiological institute of Berne is to-day known as the _Hallerianum_, as it should be, for it is distinctly the product of his genius. He died at a ripe age, after having performed an incredible amount of work, the greatest scholar of his own or perhaps of any century, revered and honored, faithful to the last and exhibiting in his last moments that "philosophic calmness of the cultivated intellect" of which Cicero loved to write. It is related of him that on his deathbed he kept his fingers on his own wrist, watching the ebbing away of his own existence and waiting for the last pulsation from his radial artery. Finally he exclaimed, "I no longer feel it," and then joined the great majority. Perhaps Haller's greatest contribution to physiological lore was his doctrine of irritability of tissues. It took the place of much that had caused previous discussion and is accepted to-day as explaining, as nearly as we can explain, numerous phenomena.