Changes in Gut Flora after Cephalexin Treatment

Eighteen patients with urinary tract infection were treated with cephalexin orally. Absorption was variable, between 29 and 89% of the total daily dose being excreted in the urine in 24 hours. A significant number of patients became faecal carriers of Pseudomonas aeruginosa compared with a control group who received no antibiotics. Four of the cephalexin-treated patients acquired a strain of Ps. aeruginosa known to be present in food from the hospital diet kitchen and one developed a urinary tract infection with this strain.     

Some Holocene pollen diagrams from Greece

Pollen diagrams have been obtained from three places in Greece. The one from Limni Kopais in southern mainland Greece covers the last part of the Würm glaciation and most of the Holocene and shows that at the end of the Würm the developing oak woodland responded to a climatic oscillation, comparable with the Allerød oscillation in northwest Europe, and was later seriously reduced during Final Neolithic times. A diagram from the uppermost peats of Tenaghi Philippon shows that the area was forested until at least the time of Christ and another from Gravouna, further east, which covers the last two thousand years or so, shows the change from oak forest to the present open shiblyak vegetation of the region. Where possible, correlations have been made with pollen zones of other authors who have published diagrams from the country.     

AN INTRODUCTORY STUDY ON THE ECOLOGY OF HYRAX (DENDROHYRAX BRUCEI AND PROCAVIA JOHNSTONI) IN THE SERENGETI NATIONAL PARK

1. Dendrofoyrax brucei and Procavia johnstoni populations have been studied in kopjes surrounding the senior author's house.
2. The two species have been described and a short historical review of the Hyracoidea is given. Some notes are made concerning "Hyraceum".
3. The kopjes under study are described, being typical of granite outcrops in the Serengeti region.
4. The adaptations of both species of hyrax for the kopje habitat are described. Observations are made on the diurnal activity patterns in relation to climatic conditions.
5. A list of all plants available to the animals is presented, and those eaten by either species are indicated. Comment is made on the lack of overlap in the diets of the two species, and this is suggested as being partly due to lack of pressure on food resources.
6. A discussion on the possible evolution of the kopje-dwelling habit is held, which concludes that reconvergence may have taken place as a result of forest giving way to woodland and plains.