=Cord=: Throughout the cervical and dorsal region the dura is quite tensely distended with an abundance of clear, light, straw-colored fluid. Upon snipping the dura this fluid escapes with a small spurt, as if under considerable pressure. The cord within, for the most part, lies free, but over the upper three or four centimeters of the cervical portion it is densely adherent to the dura anteriorly and laterally on the right side. Cross sections were made through the upper three or four centimeters of the cord, and over this area the cord is constricted by very marked thickening of all the meninges. The meninges here average from one to three millimeters in thickness. On the right side and somewhat anteriorly opposite the junction of the atlas and axis there is a single nodular, firm mass which on section shows a yellowish, firm center surrounded by very dense, pearl-gray tissue. The demarcation between the homogeneous yellowish centre and its surrounding gray tissue is very sharp. This nodule measures about 0.75 to 1 cm. in diameter. The adjacent cord is deeply indented by it. Below this nodule there is a translucent, grayish appearance of both posterior sensory columns which extends downwards and diminishes in intensity until it finally disappears in the upper dorsal region. This same appearance is well marked on the right outer margin of the upper cervical cord corresponding to the crossed pyramidal tract, and extends downwards diminishing in intensity until it disappears about the mid-dorsal region. The left pyramidal tract appears to be similarly but very slightly involved; section of the lower dorsal cord entirely negative. =Microscopically=, characteristic GUMMA.