After the title to particular land has been registered, all subsequent transactions affecting such title must be by means of the machinery furnished by the act. If the owner of the fee-simple title, as registered, desires to make a transfer thereof, he makes the usual conveyance, and hands it, together with his certificate of title, to the intending purchaser, who in turn hands them to the registrar, who then cancels the former certificate, and makes out a new one in favor of the purchaser. The latter is protected, as against any adverse claims unknown to him, by his ability to inspect the original certificate before paying over the price, and on this he can, in theory at least, absolutely rely, except with reference to the classes of rights excepted in the statute, and, under some statutes, in case of fraud or mistake.6 The manual transfer of the conveyance to the grantee therein is not regarded as effecting a transfer of title, but this takes place only upon the issuance of the new certificate. In case the fee-simple owner desires to transfer only a part of the land, his former certificate is canceled, and a new certificate is issued to him for the part retained, and another is issued to the purchaser for his part.