258 Scientific Intelligence. 



xxxvii, No. 5, 1890, pp. 22, pi. 2, 4to. — This paper forms the 

 second part of the series devoted to the scientific results of the 

 expedition sent out in 1885 and 1886 by the Imperial Academy 

 to explore Jaualand and the New Siberian Islands, and contains 

 an introduction by Baron E. von Toll, who collected the fossil 

 plants on the Island of New Siberia which are here described by 

 Schmalhausen. They consist largely of well known Arctic Ter- 

 tiary forms, but contain several new species, including two of 

 fossil coniferous wood. There is no indication that this flora rep- 

 resents an age greatly different from that of the Tertiary plant- 

 beds of the mainland of Siberia (Tschirimyi on the Lena, Simon- 

 owa, Atschinsk, Bureja, etc.) or of the Island of Sachalin. 



l. f. w. 



9. La Flora del Tufi del Monte Sonima / by Luigi Meschi- 

 nelli. Rend. R. Accad. Sci. Fis. e Mat. of Naples, April, 1890, 

 4to. Separate, pp. 8. — Dr. Meschinelli enumerates some twenty 

 species of leaf-pvints preserved in the Geological Museum of the 

 University of Naples that have been collected in the tufas of 

 Monte Somma on the north flank of Mount Vesuvius. Most of 

 them he is able to identify with living species still found in Italy. 

 They are supposed to have been buried by the lavas prior to the 

 historic period. l. p. w. 



10. Remarks on some Fossil Remains considered as peculiar 

 kinds of Marine Plants; by Leo Lesquereux. Proc. Nat. 

 Mus., vol. xiii, 1890, No. 792", pp. 5-12, pi. i. — This paper was 

 Professor Lesquereux's last contribution to paleobotany, and de- 

 scribes certain very peculiar organisms collected by the Rev. H. 

 Herzer in the Upper Helderberg limestone at Sandusky and in 

 the Portage group on Lake Erie near Cleveland, Ohio. He gave 

 to these objects the names Ualymenites Herzeri, Cylindrites stri- 

 atus, and Physophycus bilobatns, all of which are figured. They 

 will form new material for discussion by those who are interested 

 in the problematical organisms of the ancient seas. l. f. w. 



11. Brief notices of some recently described minerals. — Aromite. 

 In a paper upon some of the minerals of Atacama, Dr. Darapsky 

 gives the name aromite to a magnesia-alum having the composi- 

 tion 6MgS0 4 . A1 2 (S0 4 ) 3 .54H 2 0. It occurs with other sulphates 

 at Copiapo, and forms fibrous masses of a yellowish color ; also 

 obtained from the Pampa de Aroma in the northern part of 

 Tarapaca. The name Rubrite is also used for a mineral having 

 the composition Fe 2 3 . 2S0 3 . 3H 2 0, and occurring near the Rio 

 Loa in indistinct crystals of a deep red color. — Jahrb. Min., i, 49, 

 1890. 



Tamarugite. — Auother article upon the Tarapaca sulphates by 

 Dr. Schulze gives a general account of the method of occurrence 

 and association and a detailed description of a number of species. 

 One of these is tamarugite y this occurs in massive f orms, color- 

 less, and with a radiated structure ; hardness = 2 ; specific grav- 

 ity = 2 "03. Its composition is expressed by the formula Na 2 S0 4 . 

 A1 2 (S0 4 ) S + 12H 2 0, differing from ordinary soda-alum in the small 

 amount of water. — Verh. deutsch. Ver., Santiago, vol. ii, 1889. 



