THE EFEECrS OE HYPERTONIC SOLUTIONS. 
465 
Text-fig. 3. 
Eggs of E. esculentus which had been treated with hypertonic 
sea- water. Seventeen hours after fertilisation. 
Text-fig. T. 
BlastuliE reared from eggs of E. a cut us which had been treated 
with hypertonic sea-water for half-an-hour. Seventeen hours 
after fertilisation. 
