392 
Notices of Books , 
0 uly, 
Tables , Nautical and Mathematical , for the Use of Students , 
Seamen , Mathematicians , &c. Arranged, Corrected, and 
some Re-calculated. By Henry Evers, LL.D. London 
and Glasgow : W. Collins and Sons. 
The author remarks, in his preface, that his object has been “to 
arrange a new set of handy, clear, and correct mathematical and 
nautical tables, for the use of the student and expert practitioner 
in mathematics, navigation, nautical astronomy, steam, survey- 
ing, &c.” This task appears to have been satisfactorily fulfilled ; 
the tables are well selected and clearly printed. 
Geology of Otago. By F. W. Hutton and G. H. F. Ulrich. 
(Printed by order of the Provincial Council of Otago.) 
Dunedin : Mills, Dick, and Co. 
It is pleasant to find that in the “ Britain of the South ” Science 
is not negleCted. The volume before us gives an account of the 
physical geography, the geology, descriptive, historical, and 
economic, of the province of Otago. The mineral wealth of the 
district appears to be considerable. Antimony occurs in consi- 
derable quantity, as stibnite, at the Arrow River, Carrick Ranges, 
Waipori, and other places. Tungstate of lime occurs plentifully 
in various parts. Alum shales are found at Waikouaiti, but their 
practical value is doubtful. Retinite is so plentiful in the lignites 
that it is collected for the manufacture of varnish. There is a 
lode of copper at Moke Creek, Lake Wakatipu, but no other has 
been discovered. Haematite containing 94 to 96 per cent of 
oxide of iron occurs in a lode 6 feet thick at Moori Point, on the 
Shotover, and at Port Molyneux, and good clay ironstone exists 
at Tokomairiro. As in all these places lime and coal can be ob- 
tained at no great distance, iron-works will doubtless spring up. 
Titaniferous iron-sand is found in quantity at Port William, in 
Stewart Island. Iron pyrites, an important element in the 
industrial development of a country, are said to be common, but 
we can find no mention of the percentage of sulphur, or of the 
presence or absence of arsenic. Silver, platinum, cinnabar, and 
native mercury are mentioned in the list of minerals without full 
information as to their quantity. Wavellite occurs, but no mi- 
neral phosphate of lime appears to have been discovered. The 
coal-fields are important — that of Tokomairiro is estimated to 
contain 768,000,000 tons of available coal, after making the 
usual deduction of one-third for waste, &c. Thus New Zealand 
can enjoy, on the one hand, the advantages of manufactures, 
and on the other the nuisances of smoke, of colliers, and perhaps 
at some future date of a “ coal-ring.” 
