SPONGILLA LACUSTRIS IN MASSACHUSETTS: A CORRECTION
โ Scribed by Cole, W. H.; Potter, D.
- Book ID
- 121120932
- Publisher
- American Association for the Advancement of Science
- Year
- 1925
- Tongue
- English
- Weight
- 81 KB
- Volume
- 62
- Category
- Article
- ISSN
- 0036-8075
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
## Abstract External medium passed through the canal system of small __Spongilla lacustris__ at the rate of 70 body volumes per hour, allowing for little or no modification of its composition by the animal. Consequently any osmotic gradient between medium and animal was experienced at the cell leve
Short (0 .3 cm) and long (1 .5-2 .5 cm) lengths of laboratory-stored branches of gemmulated S . lacustris were implanted in the pond of origin on three dates approximately one, two, and three months after the time of normal gemmule hatching . The sponges derived from these implants produced eggs in