At birth 20-1/2 in. 6 months 26 in. 1 year 29 in. 2 years 32-1/2 in. 3 years 35 in. 4 years 38 in. 5 years 41-1/2 in. 6 years 44 in. 7 years 46 in. 8 years 48 in. 9 years 50 in. 10 years 52 in. THE RATE OF GROWTH OF A CHILD.--A child grows most rapidly during its first year--six to seven inches; from fourth to sixteenth, about two inches annually; thence to twentieth, one inch. Commonly, a child at two and a half years has attained half of its ultimate adult stature. The diseases of youth always accelerate growth. PULSE RATE IN CHILDREN AND ADULTS.--Normal Pulse,--of new born, 130 to 140, per minute; first year, 105 to 115; second year, 106 to 115; third year, 95 to 105; fifth to twelfth year, 80 to 90; thirteenth to twenty-first year, 75 to 80; twenty-first to sixtieth year, 70 to 75; in old age, 75 to 85. INFANT RECORDS.--A record should be kept by the mother of every child which would embrace exact data as to weight, diet, size, development of mental power, teeth, ailments, sickness, pains, etc., with dates and any information which would aid in recalling exact conditions. Such records are of the utmost value in a number of ways. They help in giving suggestions as to diet, general health, and mental qualities of the child in question, and they aid in furnishing what physicians call "past history," which past history has a very valuable significance in estimating the character and importance of sickness during later years. Such a record is also of importance in comparing a child's development with what is regarded as standard development, and also with the growth and development of other children in or out of the family. If a child should thus be found to fall seriously below the standard and yet not appear actually sick, a very thorough and routine investigation should be instituted to discover if possible the cause. Some error might thus be detected which might seriously affect the child's future growth and well-being. The date of the closing of the soft spot on the baby's head should be noted, and if it is still open, when it should be closed, it might mean that the child has a serious brain condition. The soft spot should close between the eighteenth and twenty-fourth months. The family physician should be notified if the soft spot is open later than the second year, as he may want to investigate the cause. Should the child be unusually backward in walking, and when it does so should limp and feel pain in the knees, it should be examined for any symptom of hip joint disease, of which these are the earliest signs.