1 33 Pleasant Street Middletown, Connecticut 06457
In the May 1968 issue of Pediatrics you published an observation on transverse nail ridging in early infancy that I felt was original. However, subsequent correspondence, revealed that Dr. Bela Schick first described these ridges in 1908 (Jahrb. Kinderh., 67:146). This fact was kindly brought to my attention by Dr. Maarten S. Sibinga, who published observations on growth of fingernails in Pediatrics (24:225, 1959). It is obvious, therefore, that this observation was known to some neonatologists and careful observers for some time.