Text
Expressed interest in Hamburger's data and mentioned the "ingrowing" process suggested by Cajal.
Typewritten letter, 3 pages
Typewritten letter, 1 page
Typewritten letter, 3 pages
Updates on reprints and experiments
On Hamburger's argument that DM neuroms innervate the limbs exclusively. On a paper by Yip related to NGF.
Typewritten letter, 1 page, signed 'Wally'
Typewritten letter, 1 page, signed 'Wally'
On transplanting single segments of the quail neural tubetogether with the overlying neural crest into chick embryos to study the migration of neural crest cells that form sympathetic chain ganglia.