Preface. ix 



Synovial Sheaths, Burs?e, and Fasciae, and Connective Tissue ; 

 and (3) " the Limbs as a whole." The specimens thus included 

 have been formed into ten Series (see general Analysis). The 

 Series are numbered consecutively throughout the divisions of 

 the first Class, and it is intended to carry on the numbers of the 

 succeeding Series continuously through the Classes and Divi- 

 sions which have yet to follow. Within each Series, however, 

 the numbers of the individual Specimens begin anew. In the 

 Bell Collection, a Series of specimens illustrating the normal 

 structure of each organ preceded those illustrating its abnormal 

 conditions. This method was discarded when the previous 

 Catalogue was drawn up, but has now been re - adopted. 

 The same principle has moreover been carried out among the 

 individual Pathological specimens, where a still closer proximity 

 of the normal and abnormal seemed advantageous. 



Nothing need be said about the mode of subdividing the 

 first five Series, but of that employed in the sixth — "Diseases of 

 Bone" — some explanation seems advisable, especially as, with 

 certain modifications, it has been applied to the Series which 

 follow. Under the general title " Diseases of Bone " four main 

 groups have been recognised, i.e. I. Abnormalities in growth or 

 development, which are chiefly, of course, congenital ; II. Altera- 

 tions due to local or general affections of Nutrition; III. 

 Inflammatory Diseases; and IV. Tumours or New Growths. 

 The subdivisions of the first and second of these groups may 

 be sufficiently studied in the General Analysis ; but of those 

 of the third group— -i.e.. Inflammations — a short explanation 

 may not be out of place. The view of Inflammation which 



