36 Mr. W. Murton Holmes on Foraminifera 
Protozoa, but belongs to all living protoplasm. It occurs in 
the white corpuscles of blood, and also in pus cells. It is 
exhibited also by vegetable protoplasm, as in the case of the 
plasmodia of the Myxomycetes, an order of Fungi. These 
plasmodia—the flowers-of-tan, for example—are the early stages 
of the plant, and consist of masses of naked protoplasm, without 
any distinction of cells or tissues, creeping from place to place 
over the ground or decaying vegetable matter. In due course 
the whole plasmodium is converted into sporangia, which are 
spherical bodies in which the spores are formed. 
The Foraminifera from the Gault at Folkestone have been 
systematically worked out, and the results published in the 
‘Journal of the Royal Microscopical Society,’ by Mr. Frederick 
Chapman, to whom I must express my acknowledgments for 
kindly examining my slides and revising the names of the speci- 
mens. My specimens were obtained from two small pieces of 
Gault at Merstham, one from the top and the other from the 
bottom of the cutting. These have yielded fifty-one species, 
comprising sixteen genera, and belonging to four families. There 
is no doubt that the number of species found would be largely 
increased if a greater quantity of the Gault were operated upon. 
The best method of extracting the Foraminifera is to first 
thoroughly dry the Gault in an oven, not too hot, then place it 
on a moderately fine strainer and wash thoroughly in a stream 
of water until the washings are no longer turbid. The contents 
of the strainer should then be dried, and the Foraminifera picked 
out, with the assistance of a lens, by means of a moistened camel- 
hair brush. 
Sub-kingdom Protozoa. 
Body consisting of a minute mass of protoplasm, or an aggregation 
of such masses, without differentiation of parts into organs or tissues, 
either with or without a testaceous envelope or skeletal framework. 
Class RHIZOPODA. 
Protoplasmic body capable of protruding any portion of its sub- 
stance in the shape of lobes, bands, or threads, for the purpose of 
locomotion or the prehension of food; generally more or less completely 
inclosed in a testaceous envelope; nucleus and contractile vesicle 
present or absent. 
Order FoRAMINIFERA. 
Pseudopodia protruded as fine threads which flow together wherever 
they touch, forming a network of granular protoplasm; nucleus and 
vacuoles generally indistinguishable; tests either chitinous, calcareous, 
or of agglutinated sand or shells, never siliceous. 
Family MILioLip2z. 
Test caleareous, imperforate, porcellanous. 
