From grigg!doug Thu Sep 12 15:26 EDT 1985
here, deduced from nearest-neighbor computations on endo.d,
is the structure of endoweiss
		O
		||
		C
	      H/ \H
	     HC   CH
	      |   |
	     HC---CH
	      |   |
	     HC   CH
	     / \ / \
	  O=C   CH  C=O
	    |   |   |
	   HC---C---CH
	    H   H   H

