QUARTERLY CHRONICLE. 221 
Comptes Rendus.— March to June, 1865.—There have been 
very few papers of interest to microscopists laid before the 
Academy during the past quarter, and therefore there is little 
for us to abstract from the ‘Comptes Rendus’ of that body. 
We give a brief abstract of a paper by M. de Barry, on cortical 
fibre. Of the two parts of a dicotyledonous stem, the ligneous 
and the cortical, it is well known that the second only contains 
that sort of fibres known as liberian or cortical fibres. The 
author in his paper describes certain supplemental fibres, not 
localized, but mixed with the tissue of the wood. In Loran- 
thaceze he observed for the first time in his researches on 
vegetable parasites cortical fibres en mélange with the woody 
tissue. These fibres, though sometimes disposed nearly with 
symmetry on the sides of the woody bundles, are, on the 
other hand, sometimes solitary, and in L. Europeus, L. 
spherocarpus, and in an undetermined Loranthus fixed on a 
Citrus, are more often arranged in groups. Many Leguminosz 
also have cortical fibres mixed with the tissue of their wood. 
Medicago arborea displays groups of these fibres, some 
rounded, others elongated, the first placed at the interior of 
the ligneous bundles, the second more often situated on the 
edges of the bundles and in contact with the medullary rays. 
M. lupulina has a similar arrangement of fibres, and the same 
may be observed in the genus Ulex. In Loranthus the fibres 
are dispersed in small numbers, in the Leguminose we observe 
large aggregations. The author then proceeds to point out that 
the disposition of the cortical fibres may be referred to three 
types :—Ist. The cortical fibres are well localized, occupy 
given places, and are symmetrically attached to the ligneous 
system, (Piper, Antidaphne, Viscum albeum.) 2nd. The cor- 
tical fibres are dispersed without order in the mass of the 
wood, (Medicago, Ulex, several Loranthi.) 3rd. The cortical 
fibres are, some disposed symmetrically with regard tothe wood, 
as in the first type; others scattered in the middle of it, 
as in the second type (Viscum aphyllum, articulatum, &c.). 
The Annals and Magazine of Natural History.—April to 
June, 1865.—In the April number of this journal we 
have a valuable paper by Mr. J. Carter, ‘ On the Fresh- 
and Salt-water Rhizopoda of England and India,” heing a 
continuation from vol. xii of the magazine. The principal 
species treated of by Mr. Carter in this paper are Actinophrys 
oculata, Stein.; A. Eichorni, Ehr. (of which he states he has 
only observed two specimens in India) ; Collodictyon triciliatum 
a new genus and species, having analogies with Bodo; 
Euglypha spinosa, a new species from South Devon; and £. 
globosa, also a new species from the same locality. Mr. Carter 
