Why organize a treatise on Heartwood and Tree Exudates? Why contemplate either themes jointly? What method can be taken of their therapy? The exudates have been one of many earliest goods of alternate among kinfolk, tribal, and racial groupings in prehistoric occasions. They turned used broadly as goods for the manufacture of implements and as advertisement items for illumination, for beauty, non secular and magical reasons. Later heartwood from quite a few bushes entered intra­ and foreign alternate for prestigious and non secular structures (when cedars have been used), for the furnishings (e.g., ebony, mahogany) of the the Aristocracy, for boats and automobiles. attention in their relevance to anthropology, and to the starting place of technological advancements in numerous primitive cultures, may fulfill a private life-long curiosity. awareness to this kind of subject is urgently wanted now that the advance and destruction of land and forests is expanding and wiping out the strains of prior humans to satisfy the calls for of the quickly enlarging populations of this present day. The latter represents a fair extra pressing desire. more and more, mankind is dependent upon renewable,resources produced at low strength rate. woodland items are this type of and the higher calls for for them would require their progress and usage with decreased loss and waste.