February 28, 1941

Dear Crellin, Linda, Peter, and Linus, Jr.:

Mamma and I have had our birthday party, and are now back in our room in the hotel. We arrived here this morning. Dr and Mrs Ferry had a little English boy and a sick cousin in their house, using up their spare beds, so we came to a hotel. We got our mail, including Peter's letter, from Mrs. Ferry. It is cold here below freezing. It isn't snowing, but there is ice on the ground.

This afternoon I went to the Massachusetts Institute of Technology to do the work I had to do. Then I came back to our hotel on the subway. Boston and New York are the only two American cities that have subways. At the hotel I found that the dear Mamma had bought me a nice birthday cake, with little clowns and a dancing pig and two little Red Riding Hoods made of frosting on it. We went to the dining room and had our dinner oysters on the half shell, clam chowder, broiled lobster, a big bottle of champagne, and our cake with coffee. It was good and we had fun. During the dinner a telegram came, saying Happy Birthday, from Mrs Rooke and the boys at the Laboratory.

Now we are getting ready to go to bed. Today I walked across the Harvard Yard and left a letter for Mrs Conant from Mamma. Dr Conant, the President of Harvard, is in England now. Tomorrow I am going to the Harvard Medical School and probably to the Harvard Chemistry Laboratories. On Monday we are going to Princeton.

Mamma and I send love to all of you.

Daddy