is brought up to the lip or cheek, or eyelid, where it is wanted; when
this end has derived its new blood supply, the other end is detached
from the neck and brought up to where it is wanted. In this way, skin
from the chest may be brought up to form a new forehead and eyelids.

Grafts of _mucous membrane_ are used to cover defects in the lip, cheek,
and conjunctiva. The technique is similar to that employed in
skin-grafting; the sources of mucous membrane are limited and the
element of septic infection cannot always be excluded.

_Fat._--Adipose tissue has a low vitality, but it is easily retained and
it readily lends itself to transplantation. Portions of fat are often
obtainable at operations--from the omentum, for example, otherwise the
subcutaneous fat of the buttock is the most accessible; it may be
employed to fill up cavities of all kinds in order to obtain more rapid
and sounder healing and also to remedy deformity, as in filling up a
depression in the cheek or forehead. It is ultimately converted into
ordinary connective tissue _pari passu_ with the absorption of the fat.

The _fascia lata of the thigh_ is widely and successfully used as a
graft to fill defects in the dura mater, and interposed between the
bones of a joint--if the articular cartilage has been destroyed--to
prevent the occurrence of ankylosis.

The _peritoneum_ of hydrocele and hernial sacs and of the omentum
readily lends itself to transplantation.

_Cartilage and bone_, next to skin, are the tissues most frequently
employed for grafting purposes; their sphere of action is so extensive
and includes so much of technical detail in their employment, that they