THE long crusade against Slavery in the Sultan of Zanzibar's dominions, which has been brought to a successful issue by the recent promulgation of the Decree dated the 9th June last, may be divided into two periods. In the first place, there was the series of attacks directed against the Slave Trade, that is to say, the seizure and transport of raw slaves from the African mainland into Zanzibar and from Zanzibar to Arabia, and, in the second place, there are the steps more recently taken in connection with the institution of domestic slavery. The existence of a traffic in human beings was, of course, directly due to the demand for domestic slaves in Mohammedan countries on the Coast and elsewhere, and, if means could have been found to check the demand, the supply would naturally have ceased. Until the latter part of the nineteenth century, however, the institution of domestic slavery, sanctioned, as it is, by the writings of the Prophet and by the Law of Islam, was far too firmly established in the Zanzibar dominions to be open to direct attacks from outside. It was only, therefore, by