. Zoological Society bulletin . an be placed about the bases ofthe plants until they become firmly rooted, orthe lower ends of the stems may be weightedby wrapping with a small piece of soft lead justabove the roots. Some aquarists insist that alayer of soil should first be placed under thegravel, but in completely aquatic plants this isquite unnecessary, while the soil is often asource of danger to the animal life through thedecomposition of its organic ingredients. Nearly all of these plants will slip readily andthe slips will soon form their own roots if an-chored to the bottom by a pebble
. Zoological Society bulletin . an be placed about the bases ofthe plants until they become firmly rooted, orthe lower ends of the stems may be weightedby wrapping with a small piece of soft lead justabove the roots. Some aquarists insist that alayer of soil should first be placed under thegravel, but in completely aquatic plants this isquite unnecessary, while the soil is often asource of danger to the animal life through thedecomposition of its organic ingredients. Nearly all of these plants will slip readily andthe slips will soon form their own roots if an-chored to the bottom by a pebble or a strip oflead. The tape-grass sends out runners, fromthe joints of which young shoots arise. To obtain the best results, the aquariumshould be planted at least a few days before theanimals are introduced. This allows the plantsa better opportunity^ for taking hold of thesand and it also permits them to thoroughlyaerate the water in preparation for the animallife. The plants must of course be provided with ^n~?? i< i s\ i.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectzoology, bookyear1901
