ose 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
will be considered later with the surgery of the bones and joints and
with the methods of re-forming the nose.

_Tendons and blood vessels_ readily lend themselves to transplantation
and will also be referred to later.

_Muscle and nerve_, on the other hand, do not retain their vitality when
severed from their surroundings and do not functionate as grafts except
for their connective-tissue elements, which it goes without saying are
more readily obtainable from other sources.

Portions of the _ovary_ and of the _thyreoid_ have been successfully
transplanted into the subcutaneous cellular tissue of the abdominal wall
by Tuffier and others. In these new surroundings, the ovary or thyreoid
is vascularised and has been shown to functionate, but there is not
sufficient regeneration of the essential tissue elements to "carry on";
the secreting tissue is gradually replaced by connective tissue and the
special function comes to an end. Even such temporary function may,
however, tide a patient over a difficult period.

CHAPTER II

CONDITIONS WHICH INTERFERE WITH REPAIR

SURGICAL BACTERIOLOGY

Want of rest--Irritation--Unhealthy tissues--Pathogenic bacteria.
SURGICAL BACTERIOLOGY--General characters of
bacteria--Classification of bacteria--Conditions of bacterial
life--Pathogenic powers of bacteria--Results o