ZOOPHYTES. 79 
during the Pa 
Las for med, i n a sill S le fl P“ies of these zoophytes 
teds °f cretaceous formation ’ en ° rmous beds ot ’ calcareous rock. Many 
awl they exist in immense nun d” 1 ^ eabparfc ’ composed of Foraminifera, 
form the vast mountains ranr/^V 11 tlle wbitecbalt wlll 'ch cover and 
to the centre of England. SmS r ° m Ckam pagne, in France, nearly 
tated the most enormous deimTr ^ ^ tll6S6 Z °° ,dlytos liave contri- 
Pyranuds is only an aggregation ^ e ^’ eater P art °f the Egyptian 
Pmnher of Foraminifera pScnftW Nummuhies - A prodigious 
wonde, of Italy, and of Austria ' T] T n ^ tertiary ^posits of the 
? I ans i 8 almost entirely colpased 0 f V “ “ bnndant in basin 
tese creatures are so abundant the P ^ Tbe re mains of 
ound upwards of fifty-eight thousand ^ ^ d ’ 0r higny 
ceeding a cubic inch £ chaL tm 1" * ^ 
nct ’ accordmg to this author ’i, m r It qUames of Chantilly. This 
and a small fraction) of rock l I t ^ »» inches 
haS --d t0 b * ld Paris, ^ WeU A : s t Z* fr ° m wt 
neighbonring departments, it may be sa^th^T vUla S es of the 
cmfres of population which amLnTft ! ^ 0tber 
°f these microscopic animals. ’ blult with the shells 
-the sand of the li+Wi c 
““f ta ‘ shells that it l oten 1, V“ “ * W1 » f «>« 
d Orlugny found in three grammes tr ! ^ C ° mposed of them. M. 
T , e AntdIes . four hundred and fortv th Ft” 18 troy ^ of saud from 
Bia ^ found iu thirty Z f S ° f mifera. 
grams) from the Adriatic six tl Z bundred and sixty-seven 
calculate the proportion of ’these hZ^ ° f ^ shelk If we 
of r sand ’ - -a C r a fi gZ g VbZ ained in 8 * 
^hat would this be if we could expend f ! PaSSGS aU conception. 
s >ty of surface covered by th, waves wb^n Calculation to the immen- 
M-d’Orbignyhas satisfied himself 1Z Ground the globe ? 
wls from all parts 0 f the globe that /• ™ cro f°P lc examination of 
fo ™> m all existing feas tW “ ** ^ of F “inifera 
^ t h. 
