The foraminifera: an introduction to the study of the protozoa . Fig. 1. — Foraminiferal SandFROM Tide-MARKS ON THE Shore AT LiTTLEHAMPTON, SuSSEX. X 26. Original. Fig. 2.—Sand from a Common Sponge, consisting of Fora-MiNiFERA, Sponge Spicules,Ostracoda, Shell Fragments,AND Sand Grains. x 26. Ori-(jinal. sand which, on examination with a lens or low-powermicroscope, will often reveal countless shells of theForaminifera (fig. 2). In order to see these tiny creatures alive let ustake some fresh seaweed at low tide and place it ina glass jar of sea-water. After a short space of timethe Foraminife
The foraminifera: an introduction to the study of the protozoa . Fig. 1. — Foraminiferal SandFROM Tide-MARKS ON THE Shore AT LiTTLEHAMPTON, SuSSEX. X 26. Original. Fig. 2.—Sand from a Common Sponge, consisting of Fora-MiNiFERA, Sponge Spicules,Ostracoda, Shell Fragments,AND Sand Grains. x 26. Ori-(jinal. sand which, on examination with a lens or low-powermicroscope, will often reveal countless shells of theForaminifera (fig. 2). In order to see these tiny creatures alive let ustake some fresh seaweed at low tide and place it ina glass jar of sea-water. After a short space of timethe Foraminifera wall be seen moving over the insideof the vessel, whither they have travelled from the u 2 THE FOEAMINIFEEA a seaweed, and they can then be observed withmoderately powerful lens. Living Foraminifera are very beautiful objectswhen viewed by means of a back-ground illumination,using an objective of about 40 diameters. The shellunder these conditions appears surrounded by a sortof cobweb of extremely fine sarcode threads, which, ifobserved closely, will be
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