Williams (1941); Dawson (1926)
Distinction between bone and cartilage in mammalian embryos.
References: Dawson A.B., Stain Techn., 1:123-4, 1926
Williams, T.W., Stain Techn., 16:23-5, 1941
Clark, G., (ed), Staining Procedures, 3rd Ed., Williams & Wilkins Baltimore, p. 139, c. 1973