Show THE philosophy OF PLANTS it is well known that most am ania organisms need the direct influence sunlight tor for their proper develops and in the same way plants and in f fac all life on earth depend on the action this wonderful agent the beau beautt I 1 structure of plant cells the st study which constitutes the most interest inheres part of plant biology has never b properly understood until now but a like liebig and others have the peculiar use oi of the cells in we of plants and have also in included I 1 ed in t tb investigations as of equal U I 1 I 1 por the processes oi of n nutrition arit pr knowledge shows that plants take fr the atmosphere what is needed for formation of the cells and also t ahr off useless material through the leavi leav thus carbon is taken up by the lea leavan which transform under the influence sunlight the carbonic acid taken I 1 aroi I 1 the air and through the roots nto a bon and oxygen water and salts igl also taken up by the roots ot of the PIS the various ways in which the so s light affects the leaves and blosso blosson and consequently the whole plant W me be considered in the study of p pla physiology it is well known that sunlight hai baa decided influence on the coloring of tb leaves which look sickly anu and pale cafe w ahl the plant has only a little sun sunlight j whereas strong sunlight increases ass amount ot of thereby gi giad the leaves a richer color referring the influence ot of su might we may wi propriety speak of the rays that woi chemically others which act simply j d dispensers aspe of heat while still others simply i amply light rays even though the ther not actually such a division in na nail the chemical action of the suns can be best understood by the wow won of photography and we certainly not go astray in ai assuming suming that acet rays of the suns spectrum also a special influence on the plant which will doubtless affect the plait of the different species differently the conditions ot of light and heat imp impre themselves clearly on the charac character tW the plants former observations have aarl all proved that certain rays of the 8 spectrum have a harmful effect on p organisms while on the oilier na dai others accelerate the circulation of sap and the assimilation of nouris nourish i thus promoting the growth of the pa R |