1948 Dear Josh, You time it well. Szilard is in the east and will be back that Thursday you plan on being here. Your train will come in at the Union Station and I will be there to meet you. We can all have dinner together--then spend the evening talking. I thought of inviting over a few people. I will arrange your bunks for Thursday night. I've been playing with the phage properties of K-12 and will have a few data to show you. The 58-161 strain doesn't follow the B strain at all. It mutates with high frequency to 12 and 12,6. Give our regards to Esther, and the Sachs' if you see them. Aaron