THE MUSEUM. 



297- 



THE CLEBOURNECOLLEC 

 TION. 



Another Omaha, Neb. Collection. 



For The Museum. 



Mr. William Clebourne of this city 

 recently presented to the Omaha Pub- 

 lic Library one of the finest cellections 

 of fossils in the west. 



The collection consists of Silurian 

 and Tertiary Platte Valley specimens, 

 most of which were secured along the 

 line of the Union Pacific Railroad. 

 The following is a partial list: 



Paleozoic Fossils, from lower silur- 

 .ian of Cincinnatti, Maine plants, cor- 

 als, crinoids, trilobites, shells, etc., 

 from upper silurian of Illinois and 

 Wisconsin, principally corals, crinoids 

 and brachiopod molluscs; Devonian 

 from Kentucky, Indiana, New York, 

 and Iowa; corals, brachiopod shells 

 and trilobites; carboniferous from 

 Pennsylvania, Missouri and Nebraska, 

 including a large variety in the vicinity 

 of Omaha; land plants, ferns, lepido- 

 dendrids, sigillorids and asterphyllitids, 

 corals, starfishes, trilobites, brachio- 

 pod, gasteropod and other molluscs, 

 ammonites. 



Mesozoic Fossils: Jurassic, from 

 Rocky Mountains of W^yoming; mol- 

 lusca shells, belemites, sharks' teeth, 

 etc. ; cretaceous from Colorado, W^yo- 

 ming and Utah; remains of faroid 

 "halymenites," a large variety of la- 

 mellibrande, gasteropod and cephelo- 

 pod molluscs, including baculites, bel- 

 emnites, scaphites, ammonites, etc., 

 etc. 



Tertiary Fossils: Eocene and Mio- 

 cene; numerous ferns, palms, conifers 

 and dicotyledoneous tree; remains of 

 insects, fishes, turtles and mollusca. 



Past Tertiary Fossils: Tooth, Tusk 

 and Bones of Mastodon from Platte 

 and Snake River Valleys. 



Mr. Clebourne first commenced col- 

 lecting and studying in 1S68 while 

 employed as engineer for the U. P. 

 Ry. Co. and the collection has gradu- 

 ally grown since that time until it now 

 is a monument to the energy and per- 

 severance of its donor. 



ISADOR G. TrOSTLER, 



Omaha, Neb. 



Changes in Land and Sea. 



(continued). 



We see small changes taking place 

 every day. Perhaps we live near 

 some stream, and observe daily the 

 water undermine its banks, and even 

 change its bed; we see trees fall, one 

 after another, and each taken down 

 by the current but we spend little or 

 no thought upon the matter, we are 

 apt to look upon it as a mere local oc- 

 currence, deserving of little or no no- 

 tice; we forget that the same ever 

 working power is doing the same thing 

 in every river and streamlet in the 

 world, and that the single change, al- 

 though apparent, is to us insignificant 

 in itself. 



To show the peculiar manner in 

 which currents of water act in the for- 

 mation of sedimentary deposits I would 

 refer you to the changes which have 

 taken place at different times in that 

 well known Yorkshire river, the river 

 Humber, (upon the shores of which I 

 spend the greater portion of my life — 

 the happiest perhaps) w^hich will illus- 

 trate to a great extent the proof going 

 on, on a larger scale, in other parts of 

 the world. 



For a considerable time an island 



