I now present a few extracts from these lengthy tables of the chemical composition of food materials—mentioning, first, some typical meats, then fishes, vegetables, grains, flours, etc., dairy products, fruits, nuts, and various sundries. I take but a few of each, in order to show the typical proteid value of the various foods, without making these tables too long; and the reader can readily see, by referring to the column of proteid percentage, that many articles of diet contain a far _larger_ percentage of proteid than the best meats! I present the tables, however, before discussing this question at greater length. Key to Columns: A Number of analyses F Fat B Refuse G Total carbohydrates C Water H Ash D Protein N=6.25 J Fuel value per pound E Protein by difference ──────────────────────┬────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬──── Food Materials. │ A │ B │ C │ D │ E │ F │ G │ H │ J ──────────────────────┼────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼──── ANIMAL FOOD. │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ BEEF, FRESH. │ │P.ct.│P.ct.│P.ct.│P.ct.│P.ct.│P.ct.│P.ct.│Cals. Loin, lean: Minimum │ 12 │ — │ 64.6│ 13.4│ 13.1│ 11.4│ — │ .7 │ 735 Edible Maximum │ 12 │ — │ 74.7│ 24.2│ 23.1│ 15.0│ — │ 1.1 │1000 portion Average │ 12 │ — │ 67.0│ 19.7│ 19.3│ 12.7│ — │ 1.0 │ 900 As purchased Min. │ 11 │ 6.7│ 52.1│ 11.9│ 11.6│ 10.0│ — │ .6 │ 650 Max. │ 11 │ 21.0│ 66.2│ 20.8│ 19.8│ 13.0│ — │ 1.0 │ 865 Avge. │ 11 │ 13.1│ 58.2│ 17.1│ 16.7│ 11.1│ — │ .9 │ 785 │ │ │ │ │ │ │ │ │ Loin, medium Min. │ 32 │ — │ 56.5│ 10.6│ 10.6│ 16.1│ — │ .5 │1040 fat: Max. │ 32 │ — │ 68.3│ 22.0│ 22.0│ 23.7│ — │ 2.2 │1355 Edible portion Avge. │ 32 │ — │ 60.6│ 18.5│ 18.2│ 20.2│ — │ 1.0 │1190 As purchased Min. │ 32 │ 4.1│ 44.4│ 8.5│ 8.5│ 13.7│ — │ .4 │ 860 Max. │ 32 │ 25.8│ 58.1│ 19.3│ 19.1│ 22.7│ — │ 1.9 │1300 Avge. │ 32 │ 13.3│ 52.5│ 16.1│ 15.8│ 17.5│ — │ .9 │1040 │ │ │ │ │ │ │ │ │ Loin, fat: Min. │ 6 │ — │ 52.1│ 16.0│ 15.8│ 25.1│ — │ .8 │1380 Edible portion Max. │ 6 │ — │ 56.9│ 18.7│ 17.5│ 29.6│ — │ 1.0 │1575 Avge. │ 6 │ — │ 54.7│ 17.6│ 16.8│ 27.6│ — │ .9 │1490 As purchased Min. │ 6 │ 5.9│ 44.3│ 14.1│ 13.8│ 23.6│ — │ .7 │1295 Max. │ 6 │ 15.0│ 53.6│ 16.5│ 16.1│ 25.9│ — │ .9 │1400 Avge. │ 6 │ 10.2│ 49.2│ 15.7│ 15.0│ 24.8│ — │ .8 │1305 Loin, all analyses: │ │ │ │ │ │ │ │ │