Show POINT FOR THE SCIENTIST his not been re infinitely finitely ascertained au as to whether there Is IB snow on mare mara i thi polar caps on oa the bur puce lice behave in a i which cor with mith tile the PIOU covan d rg re gions of 0 our own orld and on tile that the atmosphere la Is in composition to ours wo we would bould beem to be quite safe in ili the inference that thieo patches increase ing in and diminishing ia as they do un dor der decreasing easing and increasing solar heat aro really sloin ah ab we ne know it A difficulty la in kuch buch an assumption is of course the matter of temperature of which however Lr wa us have no ada lu knowledge on the one haud hand 0 I 1 o know that the planets planet a distance floan the iho sun BUH Is ouch that the antea elt of solar bolar radiation on its surface is ia slightly lightly ti less thin one half as aa great ni ai anith us then too tho lov ION den pity elty of tho the atmosphere of tb ib in keeping down don tho the tamp tempera ra two i to a point far blow tile the freezing boiu ol 01 but oil oa the other othar haid tui d the iho surface LOU gillons as an we see them in our tole tele would cecin to ime no ile doubt anat the polar capi cap melt in biti Al martian artlan bummer floods ct cr water ator through ch chan aniels lele natural or artificial artill cial and causing growth of vegetation along their banis we tire therefore foicey to one of to LOIK on lus lons gitlit I 1 that the planet has haa of helt Int internal ernil or external which ivl 11 are not vet explained or that tho the polar ehnow to if compo bcd 4 of something pise else than fio antei ahei atei |