The rat Volume 6; reference tables and data for the albino rat (Mus norvegicus albinus) and the Norway rat

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1915 ...taken as the amount of water. TABLE 75 Percentages of dry substance in the entire body--in several of the systems and in some organs. Observations at seven ages. See chart 24 By the use of formulas (40)-(42a) for the brain and formulas (43)-(45d) for the spinal cord, the values for table 74 after 10 days of age were obtained and also those for the respective graphs in chart 26. The data for the first 10 days are from direct observations. The percentage of water in the brain and spinal cord is linked with age and is not readily modified. Chart 24 Giving the percentage of dry substance in the body as a whole and in the several systems at different ages. Table 75, Lowrey ('13). Chart 25 Giving in terms of the dry substance of the entire body the percentage values of the several systems, sexes combined. Plotted on age in days. Table 76, Lowrey ('13). CHAPTER 9 GROWTH OF CHEMICAL CONSTITUENTS 1. In the body as a whole. 2. In the nervous system. 1. In the body as a whole. For the body as a whole Hatai (MS '15) has made a determination of its composition in terms of proteins, fat, organic extract and salts, at eight ages. The results are given in table 77. TABLE 77. Giving the chemical composition of albino rat. Hatai (MS 'IB) The following paragraphs define the terms used in table 77. Residue. The residue is represented by the solids from which all the organic substances soluble in both boiling alcohol and in water, as well as the salts have been removed. Thus the residue as here defined represents practically all the protein substances. Fat. Fat is represented by the substances soluble in boiling alcohol from which the water soluble organic extractives and salts have been removed. Organic extractives. All water soluble substances from which the salts were remove...