-2- I looked at diaphragm in Electra wh. is v. diffuse in relaxed state when tentacles are withdrawn & I could see that it is part of vestibule wh. is part of body wall. Tentacle sheath likewise is a "soft" structure ident. only by red stain of nuclei so you have a net (+ for diaphragm a clustering) of red-pink stained nuclei. Diaphragm has a canal thru it wh'is visible when have animal w/extpelled (G.L. would agree w, Woollacott that ectoprocts are closes to Coelenterates annelids than to present classf - I questioned her about other worms whereupon she indee. that Vermes was a better arrangement than the present splitting up into phyla.) To relax hy. G.L. used a few crystals of menthol in sea water tube. It takes at least an hour or longer. To mount slides desiccate stained material & coverslip w, Canada Balsam wh. Karolnow. oge.