Miscellaneous Intelligence. 



241 



There are also two plates, each 3x2 feet, suitable for framing 

 of the B and D lines, the latter 3 inches apart and the former hav- 

 ing an extent of about 24 inches. Enlargements of some of the 

 carbon bands from the arc electric light have also been made, 

 these bands containing many hundred lines, each one of which is 

 a close double or, in some cases, a triple. These plates will be 

 sold for $2.25 unmounted or $2.50 mounted on cloth. 



All subscriptions and orders should be sent and remittances (by- 

 draft, or money order) made to the Publication Agency of the 

 Johns Hopkins University, Baltimore, Mel. 



2. Temperature record at Silo, Hawaii. — The following table 

 gives a digest of the thermometric observations made at the United 

 States Consulate Agency at Hilo on Hawaii, by Mr. Charles 

 Furneaux, between April 1 and November 8, 1888. The tem- 

 peratures are given in the record for each day and from these the 

 means for successive periods often days were deduced. 



April. 



7 a. m. 



2 p. m. 



7 p. m. 



August. 



7 a. m. 



2 p. m. 



7 p. m. 



1—10 



69 



74£ 



72 



1—10 



73 



80 



74 



11—20 



70 



78 



?H 



11—29 



74 



81 



76 



21—30 



71 



81 



75 



21—31 



73^ 



81 



76 



May. 









September. 









1—10 



70 



78 



73| 



1-10 



73 



83 



76 



11—20 



72 



79 



75 



11—20 



72 



82 



77i 



21—31 



74 



79 



75 



21—30 



73 



82 



78 



June. 









October. 









1—10 



73 



81 



76 



1—10 



72 



82 



78 



11—20 



74 



82 



76 



11—20 



72 



79-| 



75 



21—30 



74 



80 



76 



21—31 



71 



78 



74 



July. 









November. 









1—10 



73 



80 



76 



1— 8 



70 



78 



73 



11—20 



74 



80 



76 



9—20 



71 



791 



75 



21—31 



74 



80 



76 



21—30 



71 



77 



73 



December, 1-10, 11-20, 21-31; 69, 77, 72; 68, 76|, 7l£; 68, 78, 71. 



3. A short Account of the History of Mathematics • by Wal- 

 ter W. Rouse Ball. 8°, pp. xxxiii, 464, 1888, Macmillan & Co. — 

 Mr. Ball has given us a very readable history and the work is well 

 done. As a general outline history it is a decided advance upon 

 anything we have in the English language. The earlier history 

 especially is well given. There are inherent difficulties when he 

 comes near to the present time, and it is not surprising that Mr. 

 Ball has not entirely overcome them even to his own satisfaction. 

 Something like a defect in perspective is evident in the final 

 chapters. Thus three lines to Grassman and a page to Hamilton 

 will not, we think, be the proportionate space given to the two 

 men in the pages of a history written a century hence. To some- 

 thing like the same cause may be attributed the statements (pp. 

 413, 414) that Felix Klein is now Professor at Berlin, Otto Hesse 

 Professor at Heidelberg, and that Camille Jordon died in 1878. 

 The persistent misspelling of Bernoulli is so common to other 

 writers as to be easily excused in Mr. Ball's pages. We find only 

 one American name in the book. Among the many excellencies 

 of the book is its admirable index. 



