45(5 CHARLES R. STOCKARD AXD E. M. VICARI 



pale, unevenly distributed granules. Some basopliiles are 

 unusually large, with large nuclei. The proportion of acido- 

 phils to basophiles, as shown by counts made on six different 

 sections of this gland, is eleven to one, which is toward high 

 basophile distribution, the low specimens of the breed having 

 ratios of twenty to one or even forty to one. From a relative 

 point of view, the pars tuberalis and distalis are enormously 

 large and wide. The nervosa is of usual size and is deeply 

 invaded by the intermedia. It is somewhat irregular in form 

 due to compression by the unusual cartilaginous invasion in 

 the dorsal region. 



The general shape of the dachshund pituitary is variable, 

 as outlines of the four longitudinal sections indicate. Many 

 glands are long and flattened dorso-ventrally with long in- 

 fundibular stalks; others are short and somewhat spherical 

 in shape. 



We have entered into details in the discussion of these 

 four dachshund pituitaries in order to present the general 

 features of this gland in the dog, as well as to convey an 

 idea of the morphologic differences which we are attempting 

 to follow and interpret. In spite of the variations which have 

 been shown in these dachshund glands, a thorough study of 

 the conditions in pituitaries of other breeds would force one 

 to class these as very close to normal in type. 



The Boston terrier, for reasons which have been discussed 

 in a foregoing section, is considered to be contrasted with 

 the dachshund in many physical characters as well as func- 

 tional reactions. We shall now attempt to determine whether 

 the nature of its pituitary is also contrasted with what has 

 been seen for the dachshund. 



The pituitaries from six pedigreed Boston terriers have 

 been studied, and in most of these the pars anterior con- 

 tained one or more cysts, some of which were extremely 

 extensive. The cells in both the pars tuberalis and pars 

 distalis are frequently arranged in twisting cords and columns, 

 with an excessive amount of connective tissue lying in trabecu- 

 late fashion among them. An exaggerated Boston terrier 



