| Description | Slide shows a vertical bar chart demonstrating the 'osmotic pressures of bloods of various animals compared with those of fresh and sea waters.'
The chart is labelled Fig. 4, and the different bars on the graph are labelled 'marine invertebrates', 'F.W. invertebrates', 'F.W. teleosts', 'M. teleosts', 'F.W. elasmobranchs', 'M. elasmobranchs', 'amphibia', 'birds, mammal, etc'. There are two horizontal dotted lines on the chart, one labelled 'river water', the other 'sea water'. |