648 



perirKlir tal»)»-. whirh forms the front 



\ . / / I'KJ: 



[Nov 



the j from the earth to the ^reat Myster\' that is worshipp^ 



would 



..I tli, 





Our Bookshelf. 



/ ' ■ M • /'. ,■ M -.'. Tdiphnnv : 



illoll tij t/lf 



( i/>,'si,i.'i: ( <i;n M ) (it'iivered (i! '' " i! 



liKlittitir ail . Ihifinber, i()2\ 



\^)22. \\\ I'l'M. J. A. I'hinin:', Tp. , m; ;.:'>. 



(I.uiiiloii : I'iic Wiirli-^- l'ri>.s, I.til. ; Ni w \\..!k; 



The W ill lrs> l'r■^^^, Im.. M)23.) "JS.Co/. net, 



SiMi'i 1 .111(1 r\> cllciil (U'scriptirins aro fir^t L'ivt 11 (>f the 

 |)lHiinimn,t wliii li t.ikc phu c wiuit \v;i\(-> av |)ri>(li;( cd 

 in li(jiii(U anil l^.im -.. '{'lie .iiithur then L:i\ rs an ai'< mnit 

 ot tlif arrliiti< tuir nl atmn^ as iina-iiicd li\ inddrrn 

 physicists. The Kntlitrlord atdni is lakcii as the 

 Standard and the I'huK k-iiohr nuihod. in which 

 atoms are supposed to radiate eturuA. is d(\srrilM(l. 

 The concludinu portion of the book is on radio t( It- 

 phon\- and will 1h' \cry helpful to llir intclliucnt 

 aniatcni'. 



Tiw! I k'ming's discussions are on orthodox lines, 

 I ml ur wiif disappointed that he does not throw more 

 lii;hl on \hv intclianisni ol I'lanck's quantum theory. 

 Many of the nuniniial results obtained are Wonderful 

 and are corrohoraitd in the most marvellous \\a\ by 

 other methods. But the modus (i/u'rainli is still a 

 mystery. In describing the Miclulson-Morlev experi- 

 ment it is stated that it prows elearh' that the \i'lorit\' 

 of light is independent ot the motion of the sonrre 

 of liulit or ot the observer. We are not justified. 

 however, in airrptiiiL; this statement if an explana- 

 tion can he L;i\en \s lii( h satisfies the accepted canons 

 of mechanical S( it iice. Such an explanation was given 

 In- [■'it/L;erald. Tlie dragging in of space and time 

 " tranus of relerence "" does not help the ordinary 

 reader. We are L^hid the author adheres as far as 

 possil)le to the laws of classical d\namics. Some men 

 of science are wondering how mm h of modern theory 

 will remain wlien all the laboriously constructed 

 scatfiilding is rtinoved. 



Poems of Science : Pages of Indian Earth History. By 

 K. A. Knight Hallowes. Pp. xii + 40. (London: 

 Erskine Macdonald, 1923.) n.p. 



Mr. K. a. Knight Hallowes has worked for eighteen 

 years o\\ the staff of the Geological Survey of India, and 

 the beauty and dignity of the country that he has 

 studied have appealed to his poetic sense. In a series 

 of sonnets, he touches on the origins and the decay of 

 the rocks that control some of the noblest scener>' of 

 the earth ; and again and again the bright hue of a 

 delicate flower, springing from some cleft in a forbidding 

 plateau or a torrent-carved ravine, lifts his thoughts 



NO. 2818, VOL. 112] 



idian sky 



i)iit \ 



made lit the resonant n.i 



East. Mr. Hallowes doi 



of India with .such lines (p. 



district of Magwe." The se 



< has achieved a ma 



I and the .simple ■ y 



ante, lead on to cffecti^ 

 1 ., : losf, Elsewh'Ti- till- • 



a lit! : phrases a 



" itic,', ,i, ,i ,, , tlarr'- •- 



cl.VC: 



accui. 

 cold. 



Ergebnisse der 



gegeben von I'l 

 schajtoi. Pp. \\ 

 1922.) \os. 5</. 



The first annual vo 

 natural sciences co- 

 thorough manner : 

 future \ 



'lescrilnni.' lo 



^enschaftt 



iriiti'-iU.: 

 ,. (lieri 



plu'su al 

 mechaiu 

 therinal 

 kinetics. 



lumes. V 



librarv 



s. the \ 



aw. radiation, contact 

 photochemistry, elect: 



t this nc'.'. ;^ I... ....*< t 



imense territory' in a very 

 • •'If'nt that this, and the 

 ■ ial requisite \n e\ er> 

 relativity, statistical 

 I tine shafts. Nerrtst's 

 al 

 -n, 

 X-ray spectroscop ruciurc utumic and 



spectral theory, t: and spectra, photo- 



electricit\ and pliotoiumnv . nd the periodic 



s\stem ol the elements are t; ..; . . authorities who 

 lia\e contributed to tlie rei ent remarkalile develop- 

 ments of the subjects with which they deal. In this 

 initial xohime most of the re\iewirs have attempted to 

 gi\(.- . ! account of the : ■ "' -- ■- • *» - 



sulij' .Ncil, aiid the liil>" 



compaiu liicir papers ajipear to I'c \ cr\ cumprLnensnc, 

 The latter should i)ro\ e \ erv \aluable : they cover the 

 ground up to 1Q22. and include work by English and 

 American physicists, the \ ali:c of \\h\rh is f'dlv recog- 

 nised in the text. "cd 

 more specitually t , _. < ar 

 under review, the oi'jict i.nnu : ^eneral view 



of the pr-'."" 'Tiade without uv i ^)f individual 



publicatii 



Opere di Paolo i V .V 

 F. Raflfaele dell 



biolo-ici. ("on 

 Pp. xii ^ 4^". {\\' 



P.\OLO Cki 1 s] A was 

 in Rome in ioK). 1 

 natural science and 



icntiti 



Polimanii. 



11,1 : i ' .1. 1023.) n.p. 



nirn .■. ; n 1S72 and died 



e was avirai tcii to tlie study of 

 luuan his scicntif"!' training in 

 the labviratorv of comparative anatomy in Genoa, 

 and soon took up the i:-\ . s;i_ation of the sponge 

 Suberites and its s\; itli the hermit crab 



Pagurus, his account <m .^ 1. 1, lorms the first paper 



