XJ9 



SCIENTIFIC NEWS. 



aod very fine grained. The external crust is a quarter of 

 a line thick, and of a blackish gray colour. The substance 

 of the stone IS marked with a few black lines, irregular, 

 very distinct, and from half a line to two lines broad. They 

 traverse it indiscrini.nately in all directions, like the veins 

 of certain marbles. Does not this seem to indicate, that 

 they existed previous to their fall, and were formed in the 

 same manner as rocks, and not Jitthe atmosphere? The 

 .day when these stones fell was remarkably calm and serene; 

 the sun shone as bright as \h one of the finest days of au- 

 tumn ; and not a cload appeared above the horizon. 



Directions for sailing to and fioni the East Indies, China, Directions for 

 New Holland, Cape of Good Hope, and the interjacent '^'""g *<?t^« 

 parts, compiled chiefly from Original Journals at the 

 East India House, and from Journals and Observations 

 made during Twenty-one Years Experience navigating 

 in those Seas; by James Horsburg, F. R. S. Part I, 

 published I8O9, quarto, 389 full pages with side notes, 

 contents, and a copious index.' — Part II, corresponding size 

 and type, 506 pages, just published. Sold by Black, 

 i*arry, and Kingsbury. 



This valuable publication cannot fail to be of great utility 

 to British navigators, who trade to the southward of the 

 equator, as well as those belonging to his Majesty's navy. 

 Exclusive^ of sailing directions and local descriptions of . T 



winds, ;Weather, currents, ports, headlands, islands, coasts, 

 dangers, &c., the geographical situations of all the particu- 

 lar headland's, islands, ports, and dangers, are stated from 

 actual observations of sun, moon, and stars, or by good 

 -chronometers. The necessity of a work of this nature has 

 long been known to navigators ; as, former directories having 

 been compiled from a mass of heterogeneous and very incoi" 

 reel materials, obtained when ships were navigated by dead 

 reckoning, prior to the application of marine chronome- 

 ters and lunar observations to naiitical science ; and these 

 directories, for the greater part, having been generally 

 transcribed from each other for nearly a century up to the 

 present time: they are constantly fraught with errour, and 

 of little use in the present improved state of navigation. 



Upon" 



