This enquiry into the ways of bees is one example out of several of the extension of the activities of Rothamsted. It was founded to study soil. It has grown under Sir John Russell to cover most of the science of the farm. Active experiments in the mechanization of farm, work are in progress and promise definite results. In so-called animal husbandry the causes of inadequate fertility in sheep arc being investigated ; and already the control of twin births has been achieved by breeding and management. The many problems of glasshouse cultivation, of which Hertfordshire is the headquarters, have a department to themselves. Charity begins at home, but does not end there. The climate of any bit of the world may be exactly imitated in heat and moisture in the new houses where plant growth is investigated and, if need be, insects bred. The agricultural science of the Empire is pooled there as botanical knowledge is pooled at Kew.