226 



HARD WICKE ' S S CIENCE - G SSIF. 



in such localities, such as the crustacean Porhimtms 

 latipes, &c. 



The southern coast is more varied, consisting 

 of the fine sandy bay of St. Aubin's, bounded on 

 either side by the rocky Bays of Portelet and Greve 

 d'Azette. Near St. Aubin's, a large number of 

 " spiders " (Maia sqn'niado) are caught in pots, and 

 the bay is a good one for dredging. We obtained 

 a considerable number of species of Crustacea and 

 mollusca there, notwithstanding unfavourable weather. 

 On the south-east and eastern shores, the coast is 

 low and shelving, so that at low tides a large quantity 

 of rocky ground is uncovered, and as this is the most 

 interesting part of the island as regards its marine 

 zoology, we shall refer to it more in detail later on. 

 This flat but rocky shore is broken by one marked 

 feature, namely. Green Island, or La Motte. It 

 consists of a mass of sand and clay, and appears to 

 correspond, as a remnant, with the sandhills of the 

 western shores. Further northwards the coast rises, 

 being very lofty at Anne Port and St. Catherine's, 

 and reaching a grand altitude at La Tour. The 

 island thus rises from the south, northwards, and its 

 chief beds dip from north-east to south-west. The 

 geology of Jersey is as yet but little worked ; it 

 is, however, of great interest — the syenites of the 

 south-east and south-west parts of the island, the 

 diorite of the St. Clement's district with veins of 

 pink syenite forming a beautiful contrast of colour. 

 The felsites and hornstones of the north-east part 

 of the island, and the lavas and remarkable con- 

 glomerates still more to the north-east, all form 

 subjects not only of great interest to the geologist, 

 but also of great scope for their explanation and 

 description. A few words as to localities for certain 

 rocks, together with their chief points of interest, might 

 be of use to some, and we will again refer to this 

 subject ; at the same time we may mention that to 

 those who make fossiliferous strata their study, the 

 island offers no attraction ; its rocks, even when 

 sedimentary, being much altered ; but it is very rich 

 in many of the rocks already alluded to, some of 

 which are of great value from an economic point 

 of view. 



( To be continued.) 



AN UNUSUAL FORM OF AMCEBA. 



WHILE observing the circulation in the Nitella, 

 some of which I had put into a shallow glass 

 cell for that purpose, I found a number of Amcebas 

 of various shapes and forms ; some were globular and 

 surrounded with a very transparent envelope, and they 

 gradually continued to change their appearances (of 

 which I have taken a variety of sketches). As they 

 passed from one state to another, they presented forms 

 that I had never before witnessed. Among them were 



some of the most extraordinary shapes, and of the 

 largest size I ever saw. The sketch I now send was 

 one of them. This creature travelled in the direction 

 indicated by the arrow ; the foremost part of the body 

 was very transparent, up which very few, but rather 

 large granules were moving as it progressed onwards. 

 The processes put forth resembled the arms of a 

 tree. At times the pseudopodia put forth were much 

 more extended than at other times, and were gently 

 waved about bent in all directions. The posterior 

 part of the creature was filled with granular matter of 

 various shapes, while the edge was very hyaline at 



Fig. 133. — An unusual form of Amoeba. 



((?), from which were given out short and^^mostly 

 pointed pseudopodia [b). At [c] a pulsating vesicle was 

 seen, which at intervals became enlarged as at (d), 

 showing a dark centre surrounded by a bright ring 

 (t'). A second paper was read on these strange 

 organisms, at the meeting of the East Kent Natural 

 History Society, on the 5th of January, l88i, illus- 

 trated by a number of sketches (the sketches were 

 taken in October 1880) showing their various chang- 

 ing forms. The one I send to you I think is 

 one of the most singular of them all. 



James Fullagar. 



Canterbury. 



