128 GKOLOOY. 



Anon. Mastodon in Wyoming Co., N. Y. Land and Water, vol. xxii . 

 p. 2d. 



Bones of a supposed Mastodon have been discovered ; " no bones or 

 teeth were found more than 10 or 12 inches below the surface of the 

 marl," the main portion occurring in the upper marshy ground. G. H. K. 



. Magdalen Islands. Land and Water, vol. xxii. p. 251. From 



the Halifax Church Chronicle. 



There are said to be 11 islands in the group, although some are 



joined together by sand-ridges and marshes. The rocks are sedimentary 



and igneous, the former much cut up and displaced by the latter, and 



form in places bold scenery and perpendicular cliffs. G. H. K. 



American Nickel Mines. Land and Water, vol. xxii. p. 252. 



From the Southport American. 

 Notices a deposit of nickel near the Gap, Lancaster county, Pa. The 

 ore is associated with copper, iron, and lime. 



An Alabama Subterrestrial Lake. Land and Water, vol. xxii. 



p. 282. From the Montgomery Bulletin. 

 Describes a flat at Dickenson's Place on the Ballard Creek. It is a 

 10-acre field floating on a lake ; a hole over two feet deep reaches 

 water ; the whole field can be shaken by a person jumping on it, yet 

 the envelope is strong enough to be cultivated by men, but it will not 

 bear the weight of a horse. G. H. K. 



'&' 



• . The Empire of Brazil at the Universal Exhibition of 1876 



in Philadelphia. Rio de Janeiro. [See Quart. Journ. Sci. n. s. 

 vol. vii. p. 119.] 



Mineral products noticed. 



.. -Barcena, Mariano. Noticia Geologica de una parte del Estado del 

 Aquas-calientes. [Geology of Part of the Aquas-calientes Region.] 

 Mexico. 



Barrett, Dr. S. T. [Lower Helderberg of Port Jervis, N. Y.] Ann. 

 Jjyc. Nat. Hist. N. Yorh, vol. xi. Abridgment in Amer. Journ. 

 vol. xiii. pp. 385-387 (1877). 



Berthoud, Edward L. On llifts of Ice in the Rocks near the summit 

 of Mt. McClellan, Colorado, and on the difl'erent Limits of Vege- 

 tation on adjoining summits in the Territory. Amer. Journ. ser. 

 3, vol. xi. pp. 108-111. 

 The presence of permanent underground ice in mines to the N.W. 

 has been explained by the suggestion that it had remained there since 

 the Glacial Period (see R. Weiser, Geological Record for 1874, p. 180), 

 The case here described is due to local causes, such as " the loose 

 nature of the soil and deep rocky debris of the mountain." G. A. L. 



Bigg- Wither, T. P. The Valley of the Tibagy, Brazil. Proc. R. 

 Geogr. Soc. vol. xx. pp. 45-5-468. 



