From the New York Tribune. An interesting experiment was performed on Friday last, in Fall River, Mass., by Drs. Julius Hoffman and Louis Weyland, of this city.. Herman Dubois has suffered from con sumption for five years, and had become very weak and debiliated. Physicians advised him to seek a warmer climate, but he had not suffi cient strength to avail himself of this chance of relief. Dr. Hoffman had transfused blood from animals—dogs and lambs——to the human subject with success in six cases, and it was determined to make the experiment upon Mr. Dubois. Dr. Hoffman described the operation as follows: ‘‘A healthy, active lamb was taken to the room where the patient reclined. The animal was laid upon its side. An incision was made on one side of the lamnyx, exposing the carotid artery. When this artery was fully exposed, a ligature was tied around the ves sel, shutting off completely the blood current. At a distance of about an inch and a half be low the ligature, a powerful pair of forceps was applied to the artery, compressing the vessel perfectly. Thus there was a space be tween the ligature and the forceps whic could be opened without danger of hemor rhage. A small incision was made into the artery in this inclosed place. Then a glass tube slightly bent was inserted into the artery. A small isthmus or constriction had been made in the part of the glass tube inserted into the artery, which enabled the tube to be securely tied into the vessel. After the tube had been secured in the lamb’s artery, everything was ready for work upon the patient. In Mr. Dubois’ arm the vein at the bend of his el bow connection the basilic and cephalic veins was exposed. A bandage was tied around below the proposed incision to prevent a flow of venous blood from the wound. After ex posing the vein by an incision an inch long, forceps were placed above and below, shutting of the blood current from a space about half an inch long. The lamb’s neck was then brought close to the patient’s arm, and the pressure of the forceps upon the lamb’s artery relaxed. The blood rushed through the tube, expelling all the air. Then the opposite end was skillfully inserted into the patient’s vein, and the pressure of the forceps upon the lamb’s artery removed. The bright blood leaped through the tube and entered the system of the patient. The stream was kept up for one minute and forty seconds. Then the compression was removed and the tube removed. Yesterday I heard from Mr. Dubois, and he had sufficiently re covered his strength to enable him to visit a warmer climate this coming cold weather with good prospects of regaining his health. The lamb is alive and doing well. A lamb used in the same manner in a former experiment in this city is alive, and is now tied in a stable in an adjoining street. The human subject was so much benefitted that he spent the summer in the Catskills, and is now in Balti more.