Read it through once

The incense here alluded to was a very valuable drug in Egypt on account of its use in embalming mummies. Quite a number of gums, resins, and the like, are obtained from Somaliland and similar half-desert countries. The frankincense of the Bible, which may be the incense of Hatasu, is obtained from _Olibanum_ produced by various species of Boswellia. In February and March, cuts are made by the incense gatherers in the bark of the trees. Tears of resin soon appear and become dried by the sun over the wound. The best kinds still come from Saba, in Arabia, where the Romans obtained it in the time of Virgil. Besides Olibanum, frankincense contains Galbanum (_Ferula galbaniflua_) and Storax (_Storax officinale_). Equal parts of these were mixed with the horny shield of a certain shell-fish. When the last is burnt, it has a strong pungent odour. The Galbanum is now found in Persia, and Storax in Asia Minor, both half-desert countries. The true Myrrh (_Commiphora myrrha_) is also found in East Africa and South-west Arabia.