i6 



The Hawkeye Ornithologist and Oologist. 



The Brontotherium and THaotherium 

 of Marsh, Hayden and Weeks are ex- 

 humed in this locality. These ani- 

 mals were of elephantine proportions, 

 and are said to reach the dimensions 

 of twenty-eight feet in length and 

 nine feet in height. I have teeth of 

 the Brontotherium three and one-half 

 inches square at the crown. The en- 

 amel of the teeth remains in astute of 

 preservation for untold centuries, 

 The bones and teeth of the Orendeii, 

 Anbhitherium (three-toed horse) Hy- 

 rtcodon, etc., are found here. The 

 Tertiary turtle is also found fossilized; 

 1 have one weighing sixty pounds. 



Following up the Cheyenne river 

 and its tributaries, many cretaceous 

 shells are found over quite an extent 

 of margin bordering their banks. 

 The Scaphties Nodwmis, here illus- 

 trated. 



play very beautifully the Sutures as 

 shown in the cut. Eigure 2 is only a 

 short portion of a Baculite, however 

 it is extremely rare to find the tail 

 termination of these shell-fish. The 

 head portion of this eephalopod was 

 an open shell. 





are from one inch to three and even 

 four inches across. Most of those dis- 

 covered have four rows of nodes, two 

 upon each side, as seen in the cut. 

 Thev are well preserved, mostly im- 

 bedded in concrete boulders of a 

 blueish gray, fine-grained calcareous 

 compact that may be called lime- 

 stone. The specimens come out 

 clear and distinct. Also associated 

 with the Scaphites in the sanii mas^ 

 are Baculites 



of all lengths and sizes from one- 

 fourth to two inches in diameter, and 

 from two to ten inches in length. 

 Manv are irridescenfc, and many dis- 



Pigure 3 represents an Ammonite 

 Placenta, a flat shell-fish with sharp 

 edges, found also in concrete bould- 

 ers, from the size of an old penny to 

 eighteen inches to two feet across, 1 

 sent one to a college in Massachusetts 

 weighing forty-nine pounds, but they 

 are procured from five to seven 

 inches across. 



Associated with these three species 

 in the same locality are the Nautilus 

 DeKayii, Inoceramus in variety, gas- 

 teropods. etc. 



The Jurassic fossil, Betemtrite. Dert- 

 sus in verv fine condition is found at 

 the "foot-hills" of the Black Hills, es- 

 pecially near the volcanic column of 

 Sanadin Trachyte: One of the great- 

 est of nature's wonders is this col- 

 um called the "Devil's Tower" of 

 which we will write at another time. 



EXCHANGE NOTICES. 

 Notices under this heading inserted for 

 one-half cent per word but no notice will 

 be inserted for less than 25 cents. 



TO EXCHANGE-First class eggs In sets 

 with full data for V nickels without the won] 

 cents on: also for 10, 25 and 60 cent shin plas- 

 ters, Heney w/davts, 



Norih Granville, N. ST. 



TO EXCHANGE— Bird's eggs in sets witli 

 full data for such sets as I may want; also ont- 

 new Ballard rifle. 23 cal., for sale or to ex- 

 change for eggs in sets. Wanted the follow- 

 ing single eggs. Red-shouldered Hawk, Sharp- 

 shinned Hawk, Broad-winged Hawk, Marsh 

 Hawk and Osprey. Henry W. Davis, 



North Granville N. T 



