JJ LEVIN2 1. In this note we give several elementary results concerning the matrix Riccati
equation dT (li)-h rc73r+ TGt-GiT-G2= 0 dt where Gi, G2, G3, Gt are «iX «i,«iX «2, n2Xni, …

… however, the waters again becanie completely coverel with iee subsequent to February '25.
The final imelting of the ice starte(l on March 13 aiid was conlleted hv March 20. In 1955 …

… But no observable intensity was present there on March 3, 1959 (Pioneer IV). … The great
peak which was intersected at 0608 UT on August 27 had no precedent in four weeks of …

Einstein’s equations for the orbits round an attracting point mass, here called the sun, are
examined so as to see whether there are orbits which end in the sun, as there are in the …

… The highest concentrations occurred during August and September. The mean per cent
saturation for the whole 27 months was approximately 65%o. The individual minimum …

Communicated January 23, 1959 One hundred years ago Darwin wrote that"... species are
only strongly marked and permanent varieties, and that each species first existed as a variety.…

In June, 1959, a child aged 3 had a painful stomatitis with fever, cervical adenitis, and a vesicular
rash on hands and feet. He was referred to a consultant paediatrician (Dr. H. McC. Giles…

A method for obtaining the intrinsic dielectric constant and loss factor of dry cellulose fiber
along the fiber axis was developed, and the dielectric properties of viscose rayon, Bemberg (…

The fortunate combination of observations of deformation of the summit of Kilauea Volcano
during the 1959 Kilauea Iki eruption and an accurate log of the eruption of lava into Kilauea …

… of Montana in the months immediately preceding August, 1959 to give a hint of the major
shock to come. A very light shock was felt in Helena on January 18, 1959. On January 27, a …