Dear Sir:
Dr. E. L. Durrum recommended you to me after I had asked him for help concerning my science project.  I am very interested in Genetics and particularly interested in Genetic changes in mice such as artificial mutations.  I would be very grateful if you could help me in any way.  I have not yet started and I am looking for any useful hints upon which to base a project.
Thank you
Mary Clark
P.S. I am 17 years old and a junior in high school