Submission of Report

HON. SPIRO T. AGNEW, President of the Senate, Washington, D.0

DEAR MR. PRESIDENT : This report, "'Marihuana and Health," is being submitted in accordance with Title V of Public Law 91-296, the "Marihuana and Health Reporting Act."
This is the first of the required annual reports to the Congress on the health consequences of marihuana usage. The report represents a summary of current scientific knowledge regarding marihuana usage and its effects on man. However, since there are many unanswered questions regarding marihuana, particularly those regarding long-term use, this report cannot be considered a definitive document on the health consequences of this most controversial drug.
The marihuana research program within the Department of Health, Education, and Welfare has been accelerated and is concentrating on those areas where information is most lacking. It is anticipated that additional information from these studies will enable us in subsequent reports to assess more comprehensively the health implications of marihuana usage.

Sincerely,

ELLIOT L. RICHARDSON,
Secretary.