Detail of machine for fertilizer placement.

Detail of roof of shade house to show vent for hot air.

Detail of seeding drum used for containers.

Detail of seeding machine at Rochester nursery.

Details of "portable" greenhouse showing construction of wood and polyfilm, "meccano" set bench frames and oil space heater. Greenhouses.

Details of harrows on Danish cultivator. Cultivation.

Details of mechanical harvester developed at nursery. Lifting, with harvester.

Details of mechanical thinner designed at nursery. Thinning seedbeds.

Devil's club (Oplopanax horridum). Chilliwack.

Diagram illustrating silvicultural options re: composition, density, productivity, and spacial.