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The recrudescence of severe invasive group A streptococcal (GAS) diseases has been associated with relatively few strains, including the M1T1 subclone that has shown an unprecedented global spread(More)
THE large meteor seen by Mr. Hall and others (NATURE, vol. xxviii. pp. 126, 150) was also observed here by Mr. Paul Mathews and myself. We estimated the length of its path while visible as 120° with(More)
ON Friday, June 27, about 5 p.m. my attention was drawn to a solar halo which lasted for about two hours from that time; the circular part of the halo was white, and about the size of an ice halo,(More)
REFERRING to the latter part of Mr. Hawell's letter in NATURE, January 24 (p. 285), there seem to be several different ways in which volcanic dust might affect the temperature, and though all of them(More)