In the cases where the sense alone is given there is no reason to think that the writer intends to give more.
At the same time it will be observed that all the quotations refer either to the double or triple synopsis where we have already proof of the existence of the saying in question in more than a single form, and not to those portions that are peculiar to the individual Evangelists.

The author of 'Supernatural Religion' is therefore not without reason when he says that they may be derived from other collections than our actual Gospels.

The possibility cannot be excluded.

It ought however to be borne in mind that if such collections did exist, and if Polycarp's allusions or quotations are to be referred to them, they are to the same extent evidence that these hypothetical collections did not materially differ from our present Gospels, but rather bore to them very much the same relation that they bear to each other.

And I do not know that we can better sum up the case in regard to the Apostolic Fathers than thus; we have two alternatives to choose between, either they made use of our present Gospels, or else of writings so closely resembling our Gospels and so nearly akin to them that their existence only proves the essential unity and homogeneity of the evangelical tradition..