Miscellaneous Intelligence. 469 



evident from the different styles of work. There are seven or 

 eight groups of mines in different places within a couple of hours 

 or so of Jebel Sikait." 



4. Handbuch der Mineralogie, von Dr. Carl Hintze. Erster 

 Band, flinfte Lieferung ; pp. 641-800. Leipzig, 1900 (Veit & 

 Company). — The fifth part of the first volume of Hintze's 

 Mineralogy (No. 17 of the entire series) has recently been issued. 

 It contains the closing pages in regard to the pyrrhotite group, 

 descriptions of the species of the cinnabar group, and the open- 

 ing portion of the pyrite group. The treatment is as thorough 

 and exhaustive as that which has characterized the parts already 

 published. 



5. Contributions to Chemistry and Mineralogy from the Labo- 

 ratory of the U. S. Geological Survey, F. W Clarke, Chief 

 Chemist. Pp. 166, Washington, 1900. (Bulletin 167, U. S. G. 

 Surv.) — This Bulletin, like others which have preceded it from 

 the same source, contains a series of chemical and mineralogical 

 researches carried oti in the laboratory under the charge of Prof. 

 Clarke. Several of the papers included, as that on the constitu- 

 tion of tourmaline, and others, have already been published in 

 part or entire in this Journal. Among others may be mentioned 

 a series of papers by H. N. Stokes on the chloronitrides of phos- 

 phorus and the metaphosphimic acids. 



6. Johnstonotite, a supposed new Garnet. — W. A. Macleod and 

 O. E. White have given the name johnstonotite (after li. M. 

 Johnston) to a brownish-yellow garnet occurring in trapezohedral 

 crystals in trachyte at Port Cygnet, Tasmania. An analysis 

 gave : 



Si0 2 A1 2 3 EeO MnO MgO CaO Ign. 



36-87 7-28 17-12 13-68 1249 1198 0-29=99-71 



It would seem to be analogous to the spessartite of Colorado, 

 which is similar in occurrence; however, although regarded as 

 differing from other garnets in the relative proportions of the 

 bases, the analysis cannot be accepted as accurate since (as noted 

 by the reviewer, L. J. Spencer) the formula only approximates to 

 that of garnet, even if all the iron is made Fe„0 3 . — Proc. JR. Soc. 

 Tasmania, 1898-99, 1900, 74, noticed in J. Chem. Soc, lxxviii, 

 663. 



III. Miscellaneous Scientific Intelligence. 



1. Annual Report of the Board of Regents of the Smithsonian 

 Institution showing the operations, expenditures and condition of 

 the Institution for the Year ending June 30, 1898. Pp. lv, 713. 

 Washington, 1899. — The report of the Secretary of the Smith- 

 sonian Institution, Prof. S. P. Langley, which has just been 

 issued, contains the usual interesting summary of the recent 

 progress of the Institution in its various departments of research 

 and exploration, collections, library and publications, and ioreign 



