♦ KNOWKfiDG^ '♦ 



of t 



qual 1 



whole 



spher. . 



CncloKinf^ cylinder, it folio 

 Hie cylinder < B 1) T is e.jiii 

 hemisphere B A D. 



We have in fact this 

 A B E D, Ficr. ! 



the £ 



rfiic 



of f 



f rin 



■parallel to tlie base (.f (Ik 

 area, of the part jiAP 

 •(•urved area of the eylimli 



A. Cm 



of il 



n.ler 



of i 



T Y , 



(•=1t(IU')== 



4 tii: 



= 2 A 0. 2 7r 

 tfreat circle < 



A. So that if we divide AE into fm 

 A M, M G, G ^^ N E, and draw I M I 

 l^araUel io tT ov y Y, the area of the s 

 into four equal parts, each eqvial to a gi 

 sphere. 



M. Tes. Note also that the surface 

 tiqual to two-third* -tfee-t©tai->8urf ace < 



i -^ (To be co^itinuei.) 



Memoey.] — " A short time eince, I went through a course of 

 inatructionl under Professor Loiaette, at 37, New Oxford-street, 

 and I must say that I was greatly charmed with it. It laiiswered 

 my everjc ; requirement. It ignores all harassing liijks and 

 foreign associations. It appeals directly to the inner workings 

 of man's (lervous system, and obtains as a response a; measure 

 of BBCCcss by no other means obtainable. Who, for, example, 

 by any otfcer known nstem, could hope to commit to memory 

 indelibly ai string of 008 fig'ureB of the Ratio of the Circum- 

 ference of tiie Circle to its Diameter, and that in the short space 

 of two hours ? And yet this is quite an ordinary performance with 

 the Professor's pupils. But an astonishing feature about the 

 matter is that, when any series of toames, dates, figures, passages of 

 prose or poetry, Ac, is memorised, it may be picked up at any point 

 and rehearsed forwards or backwArds with equal facility, and all 

 this without using any key. So simple, too, are the principles upon 

 which the system is based, thaf-they kiro capable of being mastered 

 with the greatest ease by persons of all sorts and ages. So satisfied 

 ani I with the system as a means of scientific memory-training, 

 that 1 alJi convinced that at ^ome not very distant date it will 

 form part of the cnrrioulnm at our scboole. But of what age, it 

 wiill be w\sed, is all this to telegraph, elorks ? Hare they no neetl 

 for improved and cultured memories ? Are they so conversant with 

 all that goes on around them, that when thoy get a sheet of almost 

 niidedipherable flimsy, they can call upon the iiatnral memory to 

 aid them P I think not— nay more, I am sure they are not. Never- 

 theless, were their memories once trained, an impression once made 

 would endure for ever, and there wquld be no quustion of whether 

 Mr. So-and-So or Mr. Soracbody-clso were mcmlR^r fur such-and- 

 anch a place. Further than this, I am convinced that there is 

 nothing which a telegraph clerk could study with better a(lv.Tnlai,'p, 

 or with a prospect of aecuring a greater return fer tlie outlay. 

 A short time since a youngster walked into the rrofri^S(.i'H room 

 for a lesson, saying he had been trying foi 





had it 



3 Mor 



The r 



8 pel 



of the code, 

 -r of the sor 



tl>e Professi 



and also the Army Flag SigniiHing Cu.lc, into Ijis no 

 lessons, together with more than one (iHnL-innl a|-| 

 aystem, making his the raostromplelo uml cvIihusi iv 

 •aOBt Wnral and etttfctive, systeni of niouKiiy ivo 

 little incident way help to show how easy it is 

 memory when once we sot about it in ratiomil aud n; 

 Prom the " TeUgrafhUt," June 1, 1885.' ' ' 



i' jrlilfE IN DEATH. 



^T0 one canhavo rend PTten^ively in any species of 

 ij literature without -o. ■ '■ ..; passages or occur- 

 rences, which must- .'!' ! ' _' ' i.^t — appear to him 

 to be incredible, if m.i al>,-, iofo , impo.ssible. Nor is 

 this experience peculiar to «,-rk^ ,.f tietion, in which it 

 would, of course, be more excusable than el.-.'.vbf i-- : it 

 obtains also in the <xr.i\cv productions of tlo- litoi\,i y | on, 

 and exaggeration rather than diminution i.s //,• el.ai-ac- 

 teristic' of the gnius irrihihile vatuvi every whore. 

 Passing bv, therefore, as being in a measure )irivile.a-d, 

 the "words that breathe, and the th.mghts that biu'n " 

 of the i.oet, we will desrend into the lower jlaincflhe 



nd ( 



,-)ln 



od, ' 





"Vha't peculianJies of soil, cliinato, an 'l fo..! 

 -n certain races, and .so avoid teehnieality ...f 



setiiiM^ivilist..! elLTiLn'has'those organs of si-htVh,e^^^ 

 touch, and the like, with which he has to coniond f r his 

 support with the beasts that ] orish,moro highly or ,-or„.i- 

 tively developed than his ht-nfher of the eityortho , lains; 

 and as an illustration of this, \se may point iotl„;fiol, 

 noticed in all the pttper-, ll.af the Maorlo. wlo, lately 

 visited this conntrvalwaA-s.^^ land bofot-o ...y of thtir 

 fellow passengers. ' The .savaoo man, / >.v- o;, ,;, oan sus- 

 tain with imprmifv rni amount of exposure ai:d sutToriug 

 that would cortatnlv ] rnvo fital to his nion- oiviH..d 

 brotlier, and the insens.lalit v ^> ith whieh tho Ai.a-rican 

 Indians, for instance, endure initiatory and otlier tribal 

 tortures is simply astounding. A similar measure of 

 imperturbable indifference to pain, and even death, has 

 been noticed in Oriental countries, and all our doctors in 

 India testify to the rajidiiy atid sang-froid with which 

 their ]iiitients in that country bear and recover from 

 the effects of !.,'i-ave sur-ieal oper.vtions and other like 

 iniuries.* But this ].htu=e of the question is t,'enerally 

 acknowled^•ed ; so that wc need not dwell further upon 

 it here, atal one has onlv to examine the calf-mu.^olo. of 

 the ,i:,»sv„.o or the hor.se-joek.y, or the Mooi-, of the 

 blackstnith, to Hnd that some of their ,„useU->, as well, 

 IHThaps, as of their faculties, are developed at the 

 ex pen.M...f others. ' 



'that doiu^'hty deeds of persbnal daring and adtfentnre 

 wire thought more of in the piast than they are at jiresent, 



* The following illustrative case in point is taken from Dr. 

 Livingstone's "The Zambesi," p. -163, and appears to be otherwise 

 worthy of reproduction in this connection. A native woman was, 



aaphi 



.t fro 



of a fuUe'wor of \. ' ,. - ■ ■■• " --•..''■■■^'1 o. '.he biL-k, the 



,) ' 1 . I ,,, fv . i ■ Mu!s sl'iowiii.' t'::i-, lH)th lungs 



h-el'l'.o,''n niptm-o-t Tl ! ■ I .o. lorrloigo iwhioh was, of course, 



I frightfu'l was restrained by nn iutueiou of hot ooffeo being ponrod 



I into the wjunds, and— he recovered. 



