J*4 Life and Lrttt'rn of FroHciH Gallon 



[J.) liiL- DitliT f^iouj) of inoiiMtaiiis, from an Aiistri)m model. 



is) Mount Hliinc iliKtrict, from liuiU'rkeller'H rulief miij). 



(4) Cape Town and Table Mountain, from a coloured model. 



(5) AhjKsinia. from a rude model. 



(6) 'I'lii' Isle of Wijflit, from u rude model. 



The paper itnelf is accompanied only by a photograph of (1)', Homewhat 

 confuHing as it illuHtrat<'H also the proposjii of Galton to build uj) large mapH 

 in 8toroo8C()pic section.s. 



The Galton Ijjiboratory possesses stereoscopic slides of (I) giving the 

 whole island, and of (2) — (6) inclusive, and also of a seventh slide-part of the 

 He de I'onpicrolles in the Mediterranean off Toulon. Our ))hotographs have 

 faded in the course of nearly sixty years but they show still witn extra- 

 ordinary eflect the success of (ialton's i<lea. The Stelvio stands out in a 

 way that no map can compete with, and hardly a bird's-eye view from the 

 Spitz itself could give such a gofnl conception of the 'lie of the land.' It is 

 a grievous j)ity that the stereoscopic idea of maji-models has been forgotten, 

 and we might hope for its resuscitation in association with the air-plane an 

 already suggested. We provide in the accompanying plate cojiies of the faded 

 >hotograplis of (l) and ('J) which iieveitheless will suflice— if the reader lx< 

 ucky enough to possess u pair of stereoscopic len-ses —to justify this statement. 



Another paper of this same year is entitled: "Spectacles for Divers and 

 the Vision of Amphibious Animals." In this paper Ualton states that if water 

 is in contact with the human eye' a double convex lens of flint glass, each of 

 whose surfaces has a radius of 04 H inch, will C(»rrect the concave water- 

 lens. It will reijuire to ht' supplementi^l by another* of moderate j)ower 

 according to the convexity of the indivitlual eye and refmctive power of the 

 different kinds of flint glass. Galton found, however, that even with a lens 

 of this kind under water the eye had not much power of acconunodating 

 itself to different distances, and his own distinct vision was restricted to a 

 range of alH)ul eight feet. He considered, however, the glasses he used only 

 provisional'. He thought such spectacles might be useful to divers in pearl 

 and sponge fisheries, or to sailors examining tne bottoms of ships. The paper 

 suggests that amphibious animals must nave a power of adjusting their 

 sight, i.e. seals, otters, diving birds, etc., but does not enter into the modus 

 ojtei'andi. Here again as in the case of stereoscopic maps 1 think an interest- 

 ing question has failed to be carried further. 



As late as 18KI (iaiton still maintained some interest in geographical 

 resenrch, but his maiti work was directed into other and more congenial 

 channels. In the British Association Report, 1881*, there is a brief com- 

 parison by (iaiton of the e(piipment of exploring expeditions in 18,']0 and 

 1880. He notes the progress that has been made in certain instruments: 



' Hcnrch al tlin Hoyal Oeogrmphical iSocuity liuving failiHJ tu diHcover the originals, a further 

 hunt aiiioiiK tlio ncgativctt of the GalUmutun haH l>rouf(lit to light the originaU — too lato for 

 rfprcHluction hi'rtv 



' H. A. Jii^Mirl, Vol. XXXV, lHf)/i (Sj-ot), pp. 10-11, not ftH when the diving helmet i« uwd. 



» Still exUnt in tlw f:-h„„;„„a. « pp. 73fl-40. 



