3 i8 DISCOVERY REPORTS 



the mole and reefs, between the Parador and the bridge with specimens of float-length 18 cm. approx. 

 Running in the direction of the wind was a measured distance of 150 m. between the wall A of the 

 Parador forecourt and a second wall, B to the eastward near the bandstand (Text-fig. 7). The boat was 

 taken up to a point marked C in Text-fig. 7 in line with wall B. A cross-bearing kept the outer or 



O 50 IOO 

 ' ■ I 1 L 



Text-fig. 7. Physalia physalis. Chart of Arrecife, Canary Islands, showing position of drifting experiments. 



Table 7 



Notes on 15 April 



Not much crest up. A few minutes lost in ' rolling ' at the 



start 

 Crest well up. Came right in to Parador wall 

 Crest well up at 1 1.50. At 1 1 .58 breeze fell off and Physalia 



fell over into the wind. Arrived 50 m. out from wall A 

 No. 3 was used on 14 April. Crest was good but tentacles 



deteriorating. Arrived 30-40 m. from wall A 

 Another of yesterday's specimens, in similar condition. 



Arrived 20 m. out from wall 



