["GEORGE A. CLARKE,\nCOLLECTOR OF AND DEALER IN\nBAD AND FOSSILS\nRapid City, DAKOTA", "DEAR SIR", "I wish to call your attention to my large collection of Jurassic, Cretaceous and Tertiary Fossils collected by me in the Bad Lands of this Territory. My stock contains almost all the Invertebrate fossils of the Jurassic and Cretaceous formations, and many species of the extinct vertebrates of the Tertiary age. Each specimen is carefully labeled with name of specimen, geological and geographical locality where found. Scientific schools and societies are requested to correspond with me in regard to some very large and rare specimens that would be an acquisition to any museum.", "I have a great many old specimens that are not on this list. I only list such species as I have many duplicates of, as it is almost impossible to give the exact price of each specimen. I only give the lowest and highest prices according to size and quality. Specimens of the same size are priced according to quality. This rule applies to all material that I deal in.", "I can furnish small collections suitable for small cabinets at $5.00 to $25.00. Larger ones suitable for schools and museums from $25.00 up to several hundred. For $25.00 I can send a very fine collection of medium sized specimens suitable for a private cabinet. When the selection of a collection is left to my judgment I generally give better satisfaction, for I can then put in many rare species that are not on this list. The prices herein quoted are for the goods packed and delivered to the freight or express company at Rapid City, Dakota; freight or express charges to be paid by the purchaser. When ordering to be sent by mail, postage should accompany the order. Small lots can be sent by mail; larger lots had better be shipped by express, although it costs a little more than by freight. For bills of $5.00 or less, the money should accompany the order. Orders over $5.00 will be sent on approval, provided satisfactory references are sent with order.", "### PIERRE GROUP—CRETACEOUS FOSSILS.", "These fossils are different from any found else where in the United States, inasmuch as they do not only show the form of the shell, but also the enamel and color, from bronze to white, iridescent, and resembling mother of pearl. They are very showy specimens and are correctly labeled.", "### AMMONITES—PLACENTA.", "<table><thead><tr><th>2 inches in diameter.</th><th>Weight</th><th>3 oz.</th><th>$25 to $50</th><th>75</th></tr></thead><tbody><tr><td>4 1/2 \"</td><td>\"</td><td>1 1/2 \"</td><td>\"</td><td>100</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>150</td></tr><tr><td>4 1/2 \"</td><td>\"</td><td>1 1/2 \"</td><td>\"</td><td>150</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>200</td></tr><tr><td>4 1/2 \"</td><td>\"</td><td>1 1/2 \"</td><td>\"</td><td>250</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>300</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>350</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>400</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>450</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>500</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>550</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>600</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>650</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>700</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>750</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>800</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>850</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>900</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>950</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>1000</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>1050</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>1100</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>1150</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>1200</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>1250</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>1300</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>1350</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>1400</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>1450</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>1500</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>1550</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>1600</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>1650</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>1700</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>1750</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>1800</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>1850</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>1900</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>1950</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>2000</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>2050</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>2100</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>2150</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>2200</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>2250</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>2300</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>2350</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>2400</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>2450</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>2500</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>2550</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>2600</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>2650</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>2700</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>2750</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>2800</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>2850</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>2900</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>2950</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>3000</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>3050</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>3100</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>3150</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>3200</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>3250</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>3300</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>3350</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>3400</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>3450</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>3500</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>3550</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>3600</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>3650</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>3700</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>3750</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>3800</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>3850</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>3900</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>3950</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>4000</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>4050</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>4100</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>4150</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>4200</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>4250</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>4300</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>4350</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>4400</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>4450</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>4500</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>4550</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>4600</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>4650</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>4700</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>4750</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>4800</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>4850</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>4900</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>4950</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>5000</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>5050</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>5100</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>5150</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>5200</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>5250</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>5300</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>5350</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>5400</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>5450</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>5500</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>5550</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>5600</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>5650</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>5700</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>5750</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>5800</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>5850</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>5900</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>5950</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"</td><td>6000</td></tr><tr><td>4 \"</td><td>\"</td><td>1 \"</td><td>\"