Show brain la Is heaviest except for the whale tho the elephant and the porpoise no living tiling thing tins has a brain which weighs as much OB as tile minimum of the humans in the entire human nervous system according to tho the estimates of professor donaldson Donn ldson there Is the astounding total of nerve cells in tho the study aoudy of these thesa cells and thele their grouped relation to the five divisions of the brain as well as to the functions which they perform several classes of investigators are engaged |