August 24, 1905J 



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Volvox, Spirogyra, Desmjds, Diatoms, Amoeba, Arcella, ActinosphaBrium, 

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The following animals can always be supplied, either living 

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THE NEW COLLECTION OF 



336 SPECIMENS AND SLIDES OF ROCKS, 



according to H. ROSENBUSCH: "Elemente der 

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Accompanied by a text-book : ^^ Practical Petrography," giving a short 

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 tion, by Professor Dr. K. Busz of the University of M" 

 collection is intended for the practical use of students, and cc 

 representatives of all important types of rocks ; it is conn 

 massive rocks (94 deep-seated rocks, 50 dike rocks, 

 28 sedimentary, and 3r crystalline schists. Out of it t 

 of 250 and t65 specimens have be 



Collectit 



en selected. 

 336 Specimens of Rocks 



336 Slides 



250 Specimens of Rocks 



250 Slides 



165 Specimens of Rocks 

 165 Slides 



mains typical 

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 33 volcanic rocks), 

 t smaller collections 

 =s are as follows :— 



380 Marks. 



420 



270 



310 



170 

 205 



GOLtEGTIONS OF MINERALS, FOSSILS, METEORITES, 

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The fifth edition of Catalogue No. 4, Pctro^raplty, has just 

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25 Specimens, 5/6; 50 do., 10/6; too do., 21/-; 200 do., 42/- 



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