v. 1. The chemical constituents of the body and food, by W. D. Halliburton. The chemistry of the tissues and organs, by W. D. Halliburton. The blood, by E. A. Schäfer. Hæmoglobin: its compounds and the principal products of its decomposition, by A. Gamgee. A general account of the processes of diffusion, osmosis, and filtration, by E. W. Reid. The production and absorption of lymph, by E. H. Starling. Chemistry of the digestive processes, by B. Moore. The salivary glands, by J. N. Langley. Mechanism of secretion of gastric, pancreatic, and intestinal juices, by J. S. Edkins. Mechanism of bile secretion, by D. N. Paton. The chemistry of the urine, by F. G. Hopkins. The mechanism of the secretion of urine, by E. H. Starling. The mechanism of the secretion of milk, by E. A. Schäfer. Secretion and absorption by the skin, by E. W. Reid. Chemistry of respiration, by M. S. Pembrey. Animal heat, by M. S. Pembrey. Metabolism, by E. A. Schäfer The influence of the ductless glands upon metabolism--internal secretions, by E. A. Schäfer.--v. 2. The mechanism of the circulation of the blood, by L. Hill. THe contraction of cardiac muscle, by W. H. Gaskell. Animal mechanics, by J. B. Haycraft. The muscular and nervous mechanism of the respiratory movements, by E. H. Starling. The muscular and nervous mechanisms of the digestive tract, by E. H. Starling. The muscular mechanisms of the urinary tract, by E. H. Starling. The muscular mechanisms of the generative apparatus, by E. H. Starling. The mechanical, thermal, and electrical properties of striped muscle, by J. B. Sanderson. Nerve, by F. Gotch. The physiology of electrical organs, by F. Gotch. The nerve cell, by E. A. Schäfer. The sympathetic and other related systems of nerves, by J. N. Langley. The cerebral cortex, by E. A. Schäfer. The spinal cord, by C. S. Sherrington The parts of the brain below cerebral cortex, viz. medulla oblongata, pons, cerebellum, corpora quadrigemina, and region of thalamus, by C. S. Sherrington. Cutaneous sensations, by C. S. Sherrington. The muscular sense, by C. S. Sherrington. Vision, by W. H. R. Rivers. The ear, by J. G. M'Kendrick and A. A. Gray. On vocal sounds, by J. G. M'Kendrick and A. A. Gray. The sense of taste, by J. B. Haycraft. The sense of smell, by J. B. Haycraft