FOSSIL CYCADS FROM THE BLACK HILLS— WARD. 219 



A iew (lays after visitiiif;' tliis locality oti Black's ranch I was in Hot 

 Springs, and purchased a number of fragments of cycads from a dealer 

 named Homer Moore. Two of these, which fitted together, forming a 

 block weighing a, little more than 7 kg., evidently belonged to a very 

 large trunk, and these show a number of characters which agree with 

 those of C. jenncyana. In fact they very closely resemble the Stillwell 

 Fragment, ^o. 1, so that whatever is done with the one must be done 

 also with the other. Mr. Moore thought that these specimens came 

 from the Minnekahta region, but was un(;ertain as to their source. 

 They certainly differ specifically from any of the material from that 

 region, and agree substantially with most of that from lilack's ranch. 

 I shall therefore include them under (1. jenneyana. 



I had in hand two small slabs belonging to the Woman's College of 

 Baltimore, purchased in Germany by Dr. John F. Goucher, president 

 of that college, and sent over, along with the lUbbin's collection, from 

 Maryland. Dr. Goucher informed me that when he purchased these 

 fragments he was told that they came from the l>lack Hills in America. 

 I can well believe this, as, so far as they go, they are substantially 

 identical with the material from Blac^k's ranch, and \ am obliged to 

 refer them to the present species. They contain none of the woody 

 cylinder, but are confined to the armor, of which they show a thickness 

 of 3 to 5 (;ni. The exterior is obs<',nre and (;losely resembles the Still- 

 well Fragment, No. 1, and the Homer Moore Fragment, but the inner 

 face is cut and polished in a direction transverse to the leaf bases, 

 whi(!h are beautifully shown, and also in the opposite direction, show- 

 ing the organs in longitudiiiiil section. Fruiting axes are also thus 

 exposed, and much of the above descrii)tio!i relating to the structure 

 of these organs is derived from a study of these sections. 1 have no 

 doubt that the other specimens, when similarly cut, as they will be 

 eventually, will furnish the same characters. In fact, they can now be 

 less distinctly seen on a number of fractured surfiices. 



These specimens bear the labels of the Museum of the Woman's 

 College, Nos. 1501 and 2128. The former weighs 532 grams and the 

 latter 480 grams. They are exactly alike in all essential respects and 

 may well have belonged to the same trunk. 



In the Yale collection there are 21 specimens that ai)pear to belong 

 to this species. These are Nos. 81, 87, 88, 00, 01, 0.3, 00, 07, 08, 101, 

 102, 108, 100, 111, 112, 113, 111, 115, IIG, 120, 121, 124, 125, and 120. 

 It will be observed that all but the first two of these came with the 

 two last invoices, and are from the Blackhawk region, the same from 

 which the original type of the State School of Mines was obtained. 

 The two reported from the Minnekahta region, Nos. 81 and 87, also 

 belong to this species beyond a doubt. No. 81 consists of eight small 

 fragments, which all fit together and form an irregular segment from 

 a large trunk similar to those belonging to the State School of Mines 

 of South Dakota. Indeed, they might have belonged to the supposed 



