PROP. GÖPPERT published in 1869 in the Jahrbuch des Schlesischen Forstvereins some observations on the singular inscriptions and other marks found within the stems of living trees, to which the present pamphlet is an appendix. The original tract was illustrated by four lithographic plates, and in this publication we find two more, illustrating the mode in which injuries to the wood become entirely covered over and concealed by the subsequent formation of cambium and growth of bark. The visitor to the British Museum will observe some very curious instances of this phenomenon in the botanical department, which possess the additional interest that the exact period is known when the inscriptions were made, and consequently the age of the subsequent overgrowth can be determined.