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POPULAR SCIENCE REVIEW. 
feet long, so that if the animal had the proportions of a Crocodile it was at 
least eighty feet in length. Two nearly allied species, also with large 
pneumatic cavities in the centra of the vertebrae, form the new genus 
Apatosaurus ; one of them, A. ajax , is supposed to have been between fifty 
and sixty feet, and the other, A. grandis, at least thirty feet long. The 
femur of the latter measures about three feet four inches. These are from 
a somewhat lower horizon than the Atlantosaurus. Allosaurus fragilis is a 
third new species, also with deeply excavated vertebral centra, which are 
biconcave. The bones of the feet are very slender. The animal, which is 
from the same locality as the preceding, was from fifteen to twenty feet in 
length. With these are the remains of a small Dinosaur, about as large as 
a Fox, described by Professor Marsh as Nanosaui'us rex. — Amer. Journ. Sci. r 
Dec. 1877. 
A Fossil Branchipus. — Mr. Henry Woodward has detected in some Eocene 
freshwater limestones from Gurnet Bay, Isle of Wight, numerous remains of 
delicate little Crustaceans of the genus Branchipus or Chirocephalus. The 
animals are beautifully preserved, the males exhibiting their large clasping 
antennae, and the females their egg-pouches. Mr. Woodward names this in- 
teresting little Crustacean, the first of its kind that has undoubtedly been 
found fossil, Branchipodites vectensis. The Branchipods are accompanied in 
the deposit by two species of Isopod Crustaceans, by several bivalved Entomos- 
traca, and by a great number of the remains of insects belonging to nearly 
all orders. — Proc. Geol. Soc. Dec. 19, 1877. 
Fossil Plants from Grinnell Land . — Near Discovery Harbour, where- 
H.M.S. Discovery wintered in 1875-6, in about 80° 45' N. lat., and 64° 45' 
W. long., a bed of lignite, from 25 to 30 feet thick, was found, resting 
unconformably upon the azoic schists of which Grinnell Land chiefly con- 
sists. The lignite was overlain by black shales and sandstones, the former 
containing many remains of plants ; and above these there were, here and 
there, beds of fine mud and glacial drift, containing shells of marine 
Mollusca of species now living in the adjacent sea. This glacial marine 
deposit occurs up to levels of 1,000 feet, indicating a depression and subse- 
quent elevation of the region to at least this extent. Of the remains of 25 
species of plants collected by Captain Feilden, and submitted by him to 
Professor Oswald Heer, 18 are already known from Miocene deposits of the 
Arctic zone. The deposit is therefore no doubt Miocene. It has 17 species 
in common with Spitzbergen (78° 79' N. lat.), and 8 species in common 
with Greenland (70° 71' N. lat.). With the Miocene flora of Europe it has- 
6 species in common ; with that of America (Alaska and Canada) 4 ; with 
that of Asia (Sachalien) 4 also. The species found include 2 species of 
Fquigetum, 10 Coniferse, Phragmites ceningensis, Carex noursoakensis , and 8 
Dicotelydons, namely, Populus arctica, Betula prisca and Brongniarti , Coi'ylus 
Macquarrii and insignis, Ulmus borealis , Vibui'num Nordenskioldi, and 
Nymphcea arctica. 
Of the Conifers, Torellia rigida, previously known only by a few frag- 
ments from Spitzbergen, is very abundant, and its remains show it to have 
been allied to the Jurassic genera Phcenicopsis and Baiera, the former in its 
turn related to the Carboniferous Cordaites, and among recent Conifers, to 
Podocarpus. Other Conifers are Thuites Ehrensivardi P, Taxodium distichum 
