the instruction under the medical section included a course on first aid and a lecture tour of the sanitary demonstration area at the east garrison of fort ord. in addition, a two and half day functional training course was given to engineering and medical officers on operation of water treating equipment. this instruction included operation of the following equipment: knapsack type, hand operated water filter; automatic hypochlorinator, pumping and hypochlorinating unit, purification unit no 1 (pressure filter), mobile purification unit, and distillation unit. supplementing the above, instruction and a four-hour lecture tour was given at the ninth service command laboratory on the chemical and bacteriological analyses of water. this course included lectures on principles of waste disposal and a trip to two sewage disposal plants at carmel and salinas.