that it is not merely older Paleozoic. He regards the question 

 one requiring special study, and, in closing, expresses the hope 

 that it may speedily be settled by new discoveries. 



The limestone of Mt. Chaberton is stated to be probably equiv- 

 alent with that of Montaldo Dora, of Lessola near Ivrea, of 

 Rivara, and of Levone; it also occurs at Susa, at the Piccolo 

 Moncenisio, at Seguret, along the French frontier between Frejus 

 and Chaberton, at Balmas, at Rognosa, at Chinivert, and at other 



The following number of the same Bulletin contains a paper by 

 C, DE SxEFAjii, sustaining the ground that the serpentine beds of 

 the Apuan Alps overlie the Middle and Lower Eocene; that 

 those of several localities in Tuscany are between Cretaceous strata 

 or Eocene ; and that those of Elba, Gorgona, Gichio, Jano, and 

 perhaps those of Montecristo and Cape Argentario, are older than 

 the Lower Lias but newer than the Carboniferous. 



2. Eozoon Canadense not organic. — This is the conclusion of 

 Mr. Otto Hahn after geological and zoological investigations, an 

 account of which is published in the Naturwissenchaftliche Jahres- 

 hefte for 1876 of Wurtemburg, and a translation in the Annals and 

 Magazine of Natural History for April. He says, "By my inves- 

 tigation it is established that there is no gigantic foraminifer in 

 serpentine limestone ;" " that the most essential characters of the 

 foraminifera, the chambers and the test are not there, but that we 

 have to do with pure rock-formations such as occur every where 

 in serpentine ;" that " there is no rock which is so certainlj^ the 

 result of metamorphism, and can be derived from so many miner- 

 als, as serpentine;" that he has investigated an immense number 

 of serpentines and always found that they are products of meta- 

 morphism." One of the masses of Eozoon which Mr. Hahn ex- 

 amined was from Canada, and bore Dr. Carpenter's label. 



3. Exploration of Lake Tificaca ; A.'^Agassiz and S. W. 

 Gakmax, (Bull. Mus. Comp. Zool., iii, 274).— The Paleozoic 

 fossils collected by these authors about Lake Titicaca are de- 

 scribed by Mr. O. A. Derby. Nine are Carboniferous and all but 

 one, JEuomphalus antiquus^ are represented by the same or closely 

 allied species in the United States and Brazil. No Subcarbonif- 

 erous fossils were met with; but Devonian were found close along 

 side of the Carboniferous at the island of Coati two or three miles 

 from the Lake. The Carboniferous formation extends in a general 

 northwestern direction, and the beds are tilted, often at a high 

 angle. According to Mr. Orrego the formation extends as lar 

 north as Callyoma ; Prof. J. Orton found, in the same line. Car- 

 boniferous fossils at the headwaters of the Amazonas (Pichis R.) 

 and states that Prof. Raimondi, of Lima, has traced the rocks to a 

 height of 14,000 feet, on the Apurimac, between the Pichis and 

 the Cuzco valley. 



