From where we first struck the tail of 150 there has been no disarticulation that I can see to the posterior cervicals which are turning abruptly and going downward. The tail went downward, the body -- the dorsals -- turned abruptly eastward at the pelvis and the neck turns abruptly downward from the last cervical or near it. The body has part of the ribs on the upper (right) side attached. The body lies up on something, but we do not yet know what it is. The skull and anterior portion of the neck lie below and farther to the west. We appear now to be striking a neck "as short as the slender one is long". We think perhaps it is the one (No. 130) of which we obtained the tail (with short vertebrae) in 1912. So we are getting necks "of all sizes and shapes". As I previously remarked the work of untangling this "dam" of bones is the task of working around nearly every bone, so we are compelled to do the bulk of the laboratory work in the quarry. This is absolutely