Observations of 2 groups of dams and their litters were made every 3 hr around the clock on Days 1-20 postpartum. The dams fed either an 8% or a 25% casein diet for 5 weeks before mating and during gestation and lactation. Dams on the low protein diet spent more time in the nest actively nursing their young than did high protein dams, and they exhibited no deficits in other maternal behaviors. Five of 11 kinds of behavior developed more slowly in the undernourished pups than in the well-nourished ones, but the developmental delays were no longer than a few days. Circadian fluctuations were apparent in all of the pups' activities during the 3rd postnatal week as well as in grooming and horizontal movement, 2 behaviors that were present earlier, by 6-10 days of age.

No abstract

Gastro-intestinal Focal Infection in Relation to Oral Sepsis, with special reference to Anaerobes, occurring in Six Cases of Mental Disorder. By W. M. FORD ROBERTSON, M.B., Ch.B. ON the subject of focal infection in relation to mental disorders much work has