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Show DBWDROGRAPH ARRIVES EOR LOCAL FOREST SERVICE t A dendrogra'ph hasbeen acquired by the research laboratory of the local forestry service for tho purpose of measuring (he growth of trees. Tho apparatus, which is extremely delicate, resembles a life preserver made of blocks of cork. This is fastened around the bolo of the tree, provisions having been made for expansion as the tree grows. When spring starts the tree on which the apparatus Is afrixcd, to grow, a revolving drum, operated by clock work, keeps a daily record of the extent or the tree's growth. The machine has not been installed in Ogden as yet but a location has been chosen, it is reported, and a record rec-ord or the rate of growth of various species of Ogden trees, togcthor with a record or the growth of each specie under various conditions, will bo taken, it is stated. |