THE DUCTLESS GLANDS 337 
common in acute infectious disease especially when the 
respiratory system is involved, but these rarely destroy 
tissue or materially reduce the chromophilic cells. These 
circulatory disturbances have, however, been predomi- 
natingly among the mammals although birds have suf- 
fered with infections to a high percentage. The medulla 
is much more often the seat of congestion while, when 
hemorrhage has occurred, the cortex is apparently always 
involved. Lipoidal reduction has been seen in a few 
mammals. Primates and Carnivora, once to a state of 
complete exhaustion. More serious lesions have occurred 
eleven times, and since the cause and meaning of disease 
in this body are so vague it seems well to recite briefly 
each one. 
A Weeper Cebus {Cebus capucinus) suffered for 
several months Avith constantly but slowly increasing 
skeletal deformity of the osteomalacic variety. He died 
after moving him to a new cage, his end being hurried by 
a scalp wound. At autopsy the skeletal condition was 
determined to be of the above named kind. The organs 
were in good condition. The adrenals were decidedly 
enlarged for a monkey of this size, measuring 1.8 cm. in 
length. The medulla was a solid, bro\vnish, homogeneous 
portion covered with a very narrow, barely discernible 
cortical zone. This was apparently due to a uniform 
hypertrophy of the cells of the medulla. The testes were 
slightly atrophied and fibrotic. A Black Spider Monkey 
{Ateles ater) had a history of stiffness of legs for six 
months. This was probably a sign of osteomalacia since 
at autopsy this condition was found together with a 
secondary anemia, chronic gastritis, acute enteritis and 
brown atrophy of heart. The adrenal was knob-shaped, 
the cortex was wide, brown, regular, the medulla small 
gray-purple. ^'Histologically the capsule of the adrenal 
is thicker than is commonly seen in Primates and con- 
nective tissue bands between the units of the zona glomer- 
