The only one who has attempted any very complete classification of the mss. of Godefroi de Bouillon is Pigeonneau, in his work mentioned above, Le Cycle de la Croisade, where are summed up also most of the earlier studies in this field. He has considered all the important mss. and versions that I have given above, except the Bern ms. No. 627, marked S. However, the classification of Pigeonneau is far from sufficient for our purposes. Pigeonneau's purpose was to point out the various versions contained in these mss., rather than to determine their exact relationship to each other, and the proper measure of authority due to each in a critical edition of the text or in the settlement of disputed readings. In general, then, his classification is based on the contents of the mss., the various additions and omissions of each, and not usually, it would seem, on a close line for line comparison. It is, moreover, made for the entire cycle, and the relationship of the various mss. in each of the separate branches is not always specified. This relationship may vary from branch to branch. However, the chief insufficiency, for our use, of Pigeonneau's classification, in addition to that coming necessarily from his different purpose, is his very slight treatment of the Spanish version, and the fact that he did not treat at all ms. S. Both of these are of prime importance in any exact classification of the mss.; and to determine our passages particularly, it is absolutely necessary to know their relationship to the others. Nevertheless, Pigeonneau's classification has been of use as far as it has extended. I shall, then, summarize his results, to show what had been done already, and to bring out as well what remained to be done.