Miscellancous Intelligence. 71 
is a purely solar phenomenon, produced by a vast body of self- 
luminous gas,—not improbably incandescent vapor of iron,—which 
envelopes the sun and is erupted from it in the same manner as 
the red prominences.” 
The observers were aided by Capt. Tupman of the British Navy, 
whose report is also given. 
8. Annals of the Dudley Observatory. Vol. I1—This second 
volume of Annals of the Dudley Observatory contains the descrip- 
tions of the several self-reeording meteorological instruments con- 
structed by the Director, Mr. Hough, a series of hourly observation 
1867, &c., and the several annual reports of the Director to the 
Board of Trustees. Thirty-six charts are added, exhibiting the 
changes from day to day of the meteorological phenomena during 
the years 1868-70. 
9. Astronomische Tafeln und Formeln ; by C. F. W. Purers, 
71. (W. Mauke.) 8vo, 233 pages.—This series of 
ments, and for general astronomical computations. It consists of 
nearly forty numerical tables, followed by a dozen pages of trig- 
onometric and astronomic formulas. Some of the tables are 
like those in Warnstorff’s edition of Schumacher’s Hulfstafeln, 
but there are many new ones, and most of the old ones are recom- 
puted or enlarged. The volume includes tables for conversion of 
mean into sidereal time, arcs into time, degrees, wc., into arcs; 
tables for computing parallax, nutation, aberration, figure of the 
» me 
, up to 10,000, for use in the method of least squares, 
a table of natural sines, tangents and secants, to five decimals tor 
each minute of the quadrant, an interpolation table for use when 
2d, 3d, 4th and 5th differences are employed, and tables for reduc- 
tion of barometers of various scales. 
10, The American Ephemeris and Nautical Almanae for 1874 
18 Just out, two years in advance. 
IV. MIscELLANEOUS SCIENTIFIC INTELLIGENCE. 
1. Masses of Meteoric Iron.—At the meeting of the Geological 
Society held on the 8th inst., th d 
° a - 
holm, where he had the opportunity of examining these remark- 
