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THE GEOLOGIST. 



of those geological letters,— the fossil remains of extinct animals, in which that 

 history "was imprinted. . . 



Novel information is necessarily scattered and diffused ; one portion is read 

 or delivered to one learned society, another to another on different occasions. 

 Some "parts are printed in] some "of the public journals, j>ome spoken on 

 public or private occasions, "and it is usually only after the lapse of at least 

 some few years that a new book or a new edition of an old one gives to the 

 world the portraiture of the investigations in their totality. 



The article on "Recent Discoveries in Scottish Geology" in the August 

 number of our excellent contemporary, the North British, Review, gives an 

 admirable epitome, by a writer well versed in in the most perfect knowledge of 

 his subject, of the entire series of geological advances made from the date of 

 the publication of Macculloch's " Geological Map of Scotland" in 1732, to Mur- 

 chison's first Sketch Map" of 18G0, and his valuable communications to the 

 London Geological Society in 1861. Our space will not permit us to give an 

 epitome of this valuable article or we should gladly do so, as it is one of such 

 velue that everyone interested in Scottish Geology must become acquainted 

 with it if he would understand as he ought to do the value of the recent 

 labours of Sir Roderick Murchison and of Mr. Geekie, Professors Ramsay and 

 Harkness, and other able geologists who have so well and properly supported 

 his novel and important views. 



Mr. Gregory's Elsmeniarj/ Geological Series and Collections. 



We have just inspected some elementary collections of minerals, fossils, and 

 rocks, which are issued at a very low price ; these are the best we have seen 

 for neatness of arragemeiit, while the specimens are very characteristic of the 

 subjects they illustrate. Mr. James Gregory, who has prepared these collections 

 and who has a number of others of larger size specimens, is well versed in 

 mineralogy, so that the names and localities can be depended on for correctness. 

 The rocks especially have a very neat appearance, and we never have seen a 

 a more complete British series. We understand they have been collected per- 

 sonally by Mr. Gregory in each locality. 



One advantage of these collections is that they can be obtained^without cab- 

 inets, and this we consider of great importance, as students can thus form a 

 nucleus of a collection at a small cost and not be burthened with a small useless 

 article, which they cannot enlarge nor probably dispose of. 



We would also call attention to the series of British fossils, which may be 

 had in small sets, in the same way, of from five to ten or one hundred specimens, 

 each with name, formation, strata, and locality attached ; these series are re- 

 markably good and cheap; the prices being considerably under the usual charges. 

 We have seenjsets from a the Red Crag, Hempsted Bed, Upper Headon, Lower 

 Headon, Barton, Upper fc Chalk, Portland, and Permian strata, and we believe 

 Mr. Gregory is preparing others from the other British strata. Some of the 

 collections arc so light as to be capable of transmission by post for a few penee 

 over the cost by rail, so that collectors in the country, through these series 

 have a cheap and easy method of obtaining deficiencies in their collections, and 

 recognizing species of fossils by actual examples. Mr. Gregory's museum is 

 nicely arranged, and contains a large and select collection of minerals and fossils 

 easily accessible for the selection of single specimens. 



