January 8, 1987 Dear Dr. Nirenberg: It was a great pleasure to talk with you at Bethesda Last Fall. I am now planning to change my research directions with molecular biological techniques and also with postnatal neurons in tissue culture. Somehow we managed to present the first paper at the last neuroscience meeting entitled "beta-NCF gene expression in glial cells". This year I am planning to take the neurobiology courses at the Cold Spring Harbor Lab. this summer. After the courses, I am looking for the laboratory in which I can learn some things and also have possible collaboration with molecular biology people. I wonder whether you could accept me in your laboratory for several months. I can pay most of the expenses for my stay at N.I.H. I would greatly appreciate if you consider the matter seriously. With best regards Takehiko Amano