14 NATURAL HISTORY OF OUR SHORES 



a few hours some of the little creatures will have crawled 

 up the sides of the jar, and can be observed, by means of 

 a pocket lens, extruding and retracting their pseudopodia. 

 They can then be transferred to a slip or to a " Zoophyte 

 trough," and studied under the microscope. 



If no mud is available take a few handfuls of sea-weed 

 preferably coralline from a rock pool, wash them in the 

 jar, remove the larger scraps, and save the deposit as in 

 the previous case. 



It will be noticed that the ammonite and other whorled 

 shelled forams extrude their pseudopodia from the little 

 holes on all sides, but that some forms Miliolina, Lagena, 

 etc. (see Fig. 3) extrude them by one opening. 



Allusion to some of the other protozoa will be made in 

 the chapter on collecting. 



