Of the third volume, Nemos wrote between a third and a half, including, as he tells us, the leading institutional and political parts, Savage a third, a writer named Griffin (George Butler Griffin was a native of New York state, and a graduate of Yale. He was a linguist, and had been an engineer in South America. Apparently early in the eighties, his connection with the library had ceased. He died by his own hand.) two or three chapters, and Peatfield a part. Of volume four, Bancroft did one chapter, Peatfield a fourth of the whole, and Savage a third. Nemos "assisted on parts," his work aggregating a fourth of the volume. The fifth volume of the Mexican History, embracing the period from 1804 to 1861, was known as Savage's volume. Of the manuscript, he actually wrote about two thirds. Nemos did about a fourth, including the fall of Mexico and the leading war episodes. Some of the writing was done by Peatfield. (In conversation he claimed to have written a large part of the Mexican War chapters.) The last volume of the Mexican History was prepared chiefly by Nemos and Savage, the latter writing the first and last chapters, the former about two thirds of the volume, including the history of Maximilian and the institutional chapters. Peatfield did a little work on this volume. Oak's contribution to the History of Mexico, according to his own statement, consisted of a "few slight parts." The history of the northern part of Mexico, and the Southwest of the United States was Oak's special field, designated by him as The Spanish Northwest. The entire first volume of the History of the North Mexican States is his work. The history of Lower California in this volume, as well as that in the next, was based on a manuscript on Lower California written several years before by Harcourt. But this work was so altered by both Oak and Nemos in their respective volumes through condensation, the changing of conclusions, and the adding of new material, as to amount to a rewriting. The History of Texas in North Mexican States, second volume, is the work of Peatfield; the remainder of the volume, between a third and a half, that of Nemos. (The Texas part was subsequently extended by Peatfield for the edition now in circulation, that it might find a better sale in that state.) The volume on Arizona and New Mexico is the work of Oak alone. Spanish and Mexican California likewise belonged to Oak's field and the first five volumes of the History of California are from his pen. (Nemos adds, "though he neglected to put in institutions, leaving them for W. N. [himself] and Savage." In view of Oak's oft-repeated assertion that he was sole author of these five volumes, this must mean that they were supplied in other volumes. Moreover, there are no institutional parts properly speaking in these five volumes, and if such parts as "Mission Progress," "Commercial Affairs," and the like are to be regarded, they make up half the work.)