206 Bigsby— On the Laurentian Formation. 
lava (abundantly) and an ancient lava (Vesuvius); nepheline rock ; toadstone 
(Derbyshire); Rowley-rag (Dudley): Bischoff, Geol. Chem., Kngl. edit. 
vol. ii. p. 25. Phosphate of lime in basalt and dolerite (Vogelsberg): M. 
Bromeis, Ann. Mines, 5° sér. vol. iii. 
Laurentian —Apatite in granite, zircon-syenite, hornblende-rock, marble, 
talcose, micaceous, and chloritic schists, dolerite, metalliferous veins 
traversing granite, in gneiss, diorite, porphyry, clay-slate, and beds of 
magnetic iron-ore; in various parts of Europe: Bischoff, bcd. vol. ii. p. 28. 
Also in marble in Westmeath and other townships on the Ottawa, Canada, 
and in St. Paul’s Bay and Murray Bay, NE. of Quebec, and in Laurence 
County, State of New York: Rep. Geol. Surv. Canada, 1848-49, 62. 
Stlurian: Primordial.—Phosphatic shells of Lingule; Canada, Minnesota, 
&e. (Logan, D.D. Owen, and J. Hall). Black phosphatic nodules at R. Onelle, 
Lower Canada, in a calcareous conglomerate: Can. Geol. Rep. 1851, ii. p. 106. 
— Calciferous Sandrock. Dark phosphatic nodules (coprolites) in a conglome- 
rate, resting transgressively on gneiss, Lake Allumettes: Geol. Rep. Canada, 
1851, ii. p. 110.—Chazy Limestone. Black phosphatic nodules; Lochiel, 
Hawksbury, R. Ottawa: ib¢d.— Trenton Limestone. Phosphatic fossils in blue 
shell-limestone of Kentucky: D. D. Owen, Geol. Rep. Kentucky, p. 98. 
Lower Silurian (?).—Immense deposits of Phosphorite in Spain (Logrosan, - 
Estremadura): Bullet. Soc. Géol. Fr., n.s. vol. xvii. p. 15. 
Carboniferous—Phosphate of lime in clay-slate, Fins (Allier, France): 
Meugy, Ann. Mines, 5° sér. vol. xi. p. 150. In the many and large beds of 
iron-ores and of clay-iron-stone of Kentucky, 29°5 per cent. of phosphate in 
one of the latter (at Crittenden): D. D. Owen, Geol. Rep. p. 378. 
Mesozoic—Phosphoric acid very distinct in ten different Jurassic and Tri- 
assic limestones, none of it in others: Fehling, Quart. Journ. Geol. Soc., vol. 
vii. Mise. p.90. Phosphate of lime in the marl-beds of the Lias (Calvados, &c.), 
in Jurassic, St. Thibault (Coté d’Or): Meugy, Ann. Mines, 5° sér. vol. xi. 
p- 150. Phosphate of lime, in a thin bed 550 miles long, under Chalk, 
Russia: Count Keyserling, Bullet. Soc. Géol. Fr., n.s. vol. iv. p. 11. In 
Lower Chalk, Greensand, and other rocks of nearly the same age; Wissant, 
Havre, Rethal near the Ardennes: Meugy, Comptes Rendus, vol. xlii. p. 755. 
The phosphatic beds of the Lower Greensand, Gault, and Upper Greensand 
of England. 
Tertiary.—Phosphate of lime in the Lower Tertiary beds of the Paris Basin, 
particularly in the Plastic Clay of Auteuil: Meugy, Ann. Mines, 5° sér. 
vol. xi. 
Recent.—Phosphate of lime exists in all waters running into the sea. The 
springs of Carlsbad, Bohemia, would, if it were collected, yield 55:6 pounds 
a year. Phosphoric acid in the sea-water of Copenhagen (Forchhammer). 
In the incrustations from steamboat-boilers (Volcher), Bischoff, vol. i. p. 109; 
ii. p. 27, Common in the soils of Kentucky (D. D. Owen). 
ABSTRACTS OF FOREIGN MEMOIRS. 
= 
On THE BacurirE-BEDs oF Boumiscu-Kamnitz, Nortu-Wrstrrn Bonemia, By 
Dr. Laur. (Proceed. Imp. Geol. Instit. Vienna, Feb. 16, 1864.) 
HESE strata, the youngest of the Cretaceous Period, are rather 
extensively spread East of the Elbe, until above Bohmisch- 
Leipa and Reichenberg, overlying the Quader-Sandstone, without 
the interposition of the Planer beds except at three localities, where 
