R. Harmsen: Definitions of ecosystem and ecology. Energetics foe cosystems. Complexity of ecosystems. Succession and evolution of ecosystems. Concept of ecological homeostasis.
R.N. Henriksen: Either growth or decline is virtually inevitable; growth is desirable if the race is to find a cosmic destiny. The interplanetary space will be compared with other possibilities for absorbing this growth.
J.R. Hickman: The problem of chemicals in the environment and their implications for human health. The basis for regulatory standards; strategies for regulatory control of chemicals in the environment as a health protection manager.
R.P. Sims: The state of agriculture in Canada; the capacity and constraints in meeting future food demand. The potential for assisting in meeting their increasing demand.