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"Mortarii hjdranlici quiim<|uam rui- 

 jr enim Imud dubio formatioTip sili- 

 nim, qiu'e ex mortiiiii sj)fMM('bus ad- 



tario gignimtur, coujunctionum lormaiionem lut-'iuuuis w 

 Wb Series, Vol XII, No. 36.— Nov., 1851. 6Y 





Miscellaneous Intelligence. 445 



4. Dr. Krantzh Geological and Mineralogical Specimens, — The 

 writer, in company with the senior editor of this Journal, had an oppor- 

 tunity lately of examining the arrangements of Dr. Krantz's establish- 

 ment for the sale of mineralogical and geological specimens, at Bonn *^ 

 on the Rhine. Dr. Krantz was induced to remove his collections from 

 Berlin in consequence of the greater facilities in his present position, 

 both for collecting and transmitting specimens. He has built a spa- 

 cious house expressly for the accommodation of his business, and he 

 merits the high reputation, which he already enjoys, for accuracy, integ- 

 rity and zeal, in the department of science in which he is prepared to 

 meet the wants of the scientific community. The highest confidence 

 may be placed in both the names and localhies of the spedes leaving 

 his establishment. The geological series is peculiarly full and rich in 

 American fossils from the older rocks, collected mostly under the per- 

 sonal supervision of Mr. Seamann, his highly intelligent voyageurwho 

 was in the United States in 1849 — and who is now specially devoted to 

 the geological department. It is rather singular, but we believe it is 

 true, that it is easier now to get a good series of American fossils from 

 Bonn, than to collect them in America, and certainly it may be done 

 at less cost. Dr. Krantz's mineral cabinet, (his private one,) is one of 

 the best in Europe, as it has been made up from the choicest selections 

 of many years of active collection and exchange. It extends to over 

 6000 specimens and embraces fine examples of many of the rarest 

 species. We cordially recommend Dr. Krantz's establishment to our 

 friends as the best with which we are acquainted in Europe, for the 

 sale and purchase of specimens. See his advertisement in detail in our 

 advertising pages, 



5. Gold in Australia, — Gold has been discovered, in th'e Blue 

 Mountains of Australia, in the vicinity of Bathurst. It is said to^ be 

 abundant, and many large masses have been found. One of eight 

 pounds has been reported. 



6. Prize offered by the Royal Prussian Academy at Berlin. — A prize 

 of a hundred ducats is offered for the best work on the nature and mode 

 of action, and resulting constitution, of hydraulic mortar, including the 

 constitution of zeolites generally, but especially of those produced in 

 the solidification of mortar.* The lime allowed is till the 1st of March, 

 1854. The manuscript is fo be either in German, Latin or French, 

 and to include the name of the author. The prize will be adjudged '' in 

 conventu solemni Leibnitiano," which is held in the month of July, 1854. 



OBITUARY. 



LoRENz Oken, Professor of Natural History at the University of Zu- 

 rich. He is well known for his views on the philosophy of nature, which 

 are throughout profound; yet while partly exhibiting, as in his ideas 

 on homology, a deep insight into the harmony of nature, even in ad- 



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