February 14: 3 p. m. 14 cc 2 per cent caffein injected into the gluteal muscles of the right side; 3.10 p. m., restless, jumped off the table and walked about, reflexes increased; 3.45 p. m., passed 30 cc clear, straw-colored urine; 4.45 p. m., allowed to walk about, ran across the room, about 20 feet, looked tired, stretched himself out on the floor, then raised himself and walked about showing no disturbance of gait.
February 15: 9 a. m., found dead.
Rabbit 578. Gray, female. Weight, 1,670 grams.
February 14: 3.05 p. m., 18 cc 2 per cent caffein solution injected into the gluteal muscles of the right side; 3.15 reflexes increased, but not restless; 5 p. m., allowed to walk about, no symptoms observed.
February 15: Found dead.
Rabbit 579. White and gray, male. Weight, 1,490 grams.
February 14: 3.15 p. m., 15 cc 2 per cent caffein solution injected into the gluteal muscles of the right side; put in cage; 3.30 p. m., reflexes increased; 5 p. m., taken out of cage and allowed to walk across the room, no special symptoms noticed.
February 23: Still alive.
Rabbit 580. Gray male. Weight, 1,510 grams.
February 14: 3.35 p. m., 15 cc 2 per cent caffein solution injected into lumbar muscles.