The chapter discusses various physiological studies and experiments published in the Archives de Physiol. Norm. et Patholog. for January 1897. Key findings include: 1. **Refrigerating Power of Water**: J. Lefèvre studied the variations in the refrigerating power of water with temperature and time, noting that the loss of heat increases as the temperature falls. 2. **Coagulability of Hepatic Blood**: Paulesco found that hepatic blood coagulates more slowly during digestion compared to general venous blood. 3. **New Formation of Nerve-Cells**: Prof. A. N. Vitzou reported on experiments where the occipital lobes of a monkey were removed, leading to a gradual recovery of vision and the formation of new nerve cells. 4. **Intravenous Saline Injections**: F. J. Bose and v. Vedel found that large intravenous saline injections help eliminate toxic substances in animals with infectious diseases. 5. **Vaso-motor Effect of Peptone**: W. H. Thompson discovered that Witte's peptone reduces arterial pressure in dogs by depressing the irritability of the neuro-muscular apparatus. 6. **Cerebral Hemispheres and Spinal Cord**: Wertheimer and Lepage showed that each cerebral hemisphere has direct connections with both sides of the spinal cord. 7. **Estimation of Urea in Urine**: E. Riegler described a simple method for estimating the amount of urea in urine using Millon's reagent. Additionally, the chapter includes a section on diseases of children, focusing on Syphilitic Pseudo-Paralysis (Parrot's Disease) in infants, which is a rare condition caused by hereditary syphilis. Dr. Moncorvo detailed three cases and provided historical context, noting that the condition typically affects infants within the first few months of life and can be treated with anti-syphilitic inunctions.The chapter discusses various physiological studies and experiments published in the Archives de Physiol. Norm. et Patholog. for January 1897. Key findings include: 1. **Refrigerating Power of Water**: J. Lefèvre studied the variations in the refrigerating power of water with temperature and time, noting that the loss of heat increases as the temperature falls. 2. **Coagulability of Hepatic Blood**: Paulesco found that hepatic blood coagulates more slowly during digestion compared to general venous blood. 3. **New Formation of Nerve-Cells**: Prof. A. N. Vitzou reported on experiments where the occipital lobes of a monkey were removed, leading to a gradual recovery of vision and the formation of new nerve cells. 4. **Intravenous Saline Injections**: F. J. Bose and v. Vedel found that large intravenous saline injections help eliminate toxic substances in animals with infectious diseases. 5. **Vaso-motor Effect of Peptone**: W. H. Thompson discovered that Witte's peptone reduces arterial pressure in dogs by depressing the irritability of the neuro-muscular apparatus. 6. **Cerebral Hemispheres and Spinal Cord**: Wertheimer and Lepage showed that each cerebral hemisphere has direct connections with both sides of the spinal cord. 7. **Estimation of Urea in Urine**: E. Riegler described a simple method for estimating the amount of urea in urine using Millon's reagent. Additionally, the chapter includes a section on diseases of children, focusing on Syphilitic Pseudo-Paralysis (Parrot's Disease) in infants, which is a rare condition caused by hereditary syphilis. Dr. Moncorvo detailed three cases and provided historical context, noting that the condition typically affects infants within the first few months of life and can be treated with anti-syphilitic inunctions.