PALHOZOIC ROCKS BENEATH NORTHAMPTON. 489 
its) ie) ica ed 
No. of bed. 818 0 
Pee MOCOlAte Marl] 2 sacnsesingsodedsaveudtiaerscsaemisnenceeedes o 
Beebe oreen: Marly. nsec teeraedaude siete unsnionten aa olle - 
84. Red sandstone and marls, with Modiola Macadami 
ETOAC) TOOC 5 ac Ades tenancies aaa eat ena nae — 847 0 
85. Red and green marl, with sandy bands............... 04 6 881 6 
86. Blue sandy marl, with coniferous wood-remains... 4 6 886 0 
87. Grey-bluish sandstone, with plant-remains ......... 3 0 889 0 
The junction between beds 87 and 88 is distinct, the latter being 
a brown marl, and followed by thick beds of coarse red sandstone, 
containing some hard quartzose grits and a few layers of marl. 
Bed 95, at 942 feet, contained a fissure 4 inch in width, which also 
revealed a slight fault, the displacement, however, not being more 
than 2 inches. 
fis ate ite ant 
No. of bed. 889 0 
88. Brown marl, with septarian veinsreplaced by sandy 
MEE lest HOM a ararr nh cto a alsiicis gale ses nein canst skied eae awis 11 0 900 O 
Soetved marl with sandy layers .........000.c.s.sereenoe fe): eiktei 
90. Fine-grained red and yellow sandstone............... 12 0 930 0 
Sea OarsG red SAMAStONG 6.3.0 ccvcsesndesnecserstoensadeadecs 1 0 
92.-Coarse purple quartzose rock ..........0.c..0-0+0-eeeeee 1 6 
PA MGFECMISN GUATEZOSC OTE qe. ..2..cassecedoee ace esest oe 1 0 933 6 
94. Red marl, with red and white sandstone bands ... 8 6 942 O 
95. Very hard coarse grit (wide fissure filled with cal- 
(SEIREOUE) CIB) COT) IM pecone AbatoconodacnctonocoqanbodneOnee 5 4 ODES 
96. Red and white sandstone, with several layers of 
PEA EMEP asic saci lite ten seidonie ua segue emmseestemeenee ae 1 AU 
Siemeale-croen Calcareous grit ..........cesaccecoeceeesorees i 0 959 0 
98. Red and grey sandstone, with marl and septaria... 30 6 
99: Hard grey sandstone, fissured .............000e0eeeee i © Beil vy 
IPE Ge BNE DER 3. oidisis wsietensn Voweictladasadlstionla Sale deabeln at asanoals 3 0 994 0 
Specimens of these quartzose grits were submitted to Prof. T. G. 
Bonney, Pres. G.S., who has kindly favoured me with the following 
notes upon them :— | 
Bed 91, at 930 feet.—< A moderately compact, dull, light-red 
sandstone, becoming coarser in the lower part (see bed 92), and 
giving indications of stratification at an angle of 80° with the axis 
of the core. In the finer parts the grains are about :01 inch, butin 
the coarser are three or four times that size, with occasional frag- 
ments exceeding ‘1 inch. There is one fragment 1 inch long, but 
possibly that may be a vein. Many of the grains are quartz, and 
some are apparently felspar. The red colour is due to an external 
pellicle of oxide of iron.” 
Bed 92, at 931 feet. —“ A rock resembling in texture the coarser 
of the above specimens, slightly more purple in colour, and decidedly 
harder. The quartz-grains constitute about + of the whole mass ; they 
are subangular to tolerably well rounded in form ; some contain abun= 
dant minute cavities, but others are rather clear. Bubbles appear 
to be very rare, but I have noticed afew. Some grains consist of a 
