In plants the same gradual process of improvement, through the occasional preservation of the best individuals, whether or not sufficiently distinct to be ranked at their first appearance as distinct varieties, and whether or not two or more species or races have become blended together by crossing, may plainly be recognised in the increased size and beauty which we now see in the varieties of the heartsease, rose, pelargonium, dahlia, and other plants, when compared with the older varieties or with their parent-stocks.

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Inplantsthesamegradualprocessofimprovement,throughtheoccasionalpreservationofthebestindividuals,whetherornotsufficientlydistincttoberankedattheirfirstappearanceasdistinctvarieties,andwhetherornottwoormorespeciesorraceshavebecomeblendedtogetherbycrossing,mayplainlyberecognisedintheincreasedsizeandbeautywhichwenowseeinthevarietiesoftheheartsease,rose,pelargonium,dahlia,andotherplants,whencomparedwiththeoldervarietiesorwiththeirparent-stocks.