The Importance of Sonic Boom Studies: A Letter from Dr. H. H. Hobbs1964-06-17unknownhttp://rightsstatements.org/vocab/NKC/1.0/enghttp://congressarchives.org/record/CAC_CC_038_8_47_6_0030The author received a letter from Dr. H. H. Hobbs expressing support for completing sonic boom studies in Oklahoma City. The author appreciates Dr. Hobbs' articulate expression and understanding on the matter. The author expresses gratitude for the letter and sends well wishes.