10 SMITHSONIAN INSTITUTION 



to their time. Another very fine collection limited to the beds at and around Louisville was 

 made in the early years by Dr. J. Knapp, and afterwards passed into the hands of Professor 

 W. W. Borden, of Borden, Indiana ; it contained type and other specimens of much importance 

 which Professor Borden with extraordinary generosity presented to me, and some of which 

 were described in my memoir on American Fossil Crinoids, in 191 1. Since 1896 nearly all 

 the crinoids found in the Louisville area by the veteran and indefatigable collector, George K. 

 Greene, of New Albany, Indiana, have been submitted to me for inspection and for the pur- 

 chase of such as I desired ; continual purchases were made from him, largely with a view to a 

 revision of the genera Dolatocrinus and Hadrocrinus, which were not adequately treated in 

 the North American Crinoidea Camerata for want of proper material. This has now been 

 supplied, and numerous drawings for the proposed paper have been made. Mr. Greene lived 

 in the midst of the crinoidal exposures at and near the Falls of the Ohio, and could watch 

 them at all stages of water ; scarcely a season passed without a good haul being made. Among 

 the acquisitions from him is considerable undescribed material. Collections made by Kirk 

 in the Onondaga of New York in 1906, and by Braun in 1910, and a fine series from the 

 Onondaga of Columbus, Ohio, given to me by Rev. H. Hertzer, whose collections of fossil 

 fishes have enriched the paleontology of that state. The collection of Rev. W. H. Barris from 

 the Hamilton strata near Davenport, Iowa, but especially in the Alpena region of northern 

 Michigan — the product of several summer vacations spent in the field by that ardent paleon- 

 tologist ; it contains types of species described by Wachsmuth and Barris and by Barris alone, 

 and a large number of fine specimens of other species, including some new. This is supple- 

 mented by extensive collections afterwards made for me in the same region by Kirk with 

 better facilities ; and also by some specimens from the Tiffany collection at Davenport, Iowa. 

 Collections made for me in the Hamilton of Callaway County, Missouri, by Mr. D. K. Greger, 

 of Fulton, Missouri ; in the Hamilton and Portage of New York near Moscow and Naples by 

 Kirk in 1908 ; in the Chemung at Belmont, N. Y., by Braun in 1909. 



European; Lozver Devonian. Slates of Germinden and Bundenbach in northern Ger- 

 many ; a complete series from Dr. B. Stiirtz at Bonn, and subsequent purchases. 



Eifelian. Good collections obtained by me during a tour of the Eifel Mountains in 1887 

 from local collectors, including that of Kroeffges at Priim ; and numerous purchases from 

 collectors and dealers in Gerolstein and Bonn at frequent intervals since — all resulting in a 

 very complete series of the Eifel crinoids, and exceptional specimens of some species. A good 

 series of the species from equivalent strata in southern France and Spain was obtained by 

 exchanges. 



LOWER CARBONIFEROUS : 



Waverly; Kinderhook ; Chateau. Collection made for me in the Ohio Waverly at Rich- 

 field, Ohio, by Beachler in 1888. Large collections from the so-called Kinderhook horizon 

 made during several visits by Wachsmuth and myself at Le Grand, Iowa — one of the remark- 

 able localities for finely preserved crinoids and blastoids — and by purchase from local 

 collectors. By arrangement with the owners of the quarry we were present when the crinoid 

 layer was exposed and taken out under our direction, thus enabling us to obtain great numbers 

 of specimens in perfect condition. From the equivalent of the Choteau at Lake Valley, south- 

 ern New Mexico, a large collection was made by myself during three visits, embracing many 

 species common in the rocks at Burlington. 



Lower and Upper Burlington. The typical locality for these horizons is at Burlington, 

 Iowa, which has been classic ground for crinoid collectors ever since the descriptions by Owen 

 and Shumard in 1852 ; the residence of Wachsmuth for 35 years, and of myself for five, and 

 the seat of our joint paleontological investigations from 1878 forward. No other locality 

 compares with it for abundance, preservation and variety of fossil echinoderms, the number 

 of described species of crinoids and blastoids amounting to 334. The exposures are very 

 extensive ; quarries in former years were numerous, and transient collectors could generally 



