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Radford P J. Growth analysis formulae—their use and abuse. The necessary and sufficient assumptions for the derivation of commonly used growth analysis formulae are presented. A distinction is made between traditional, time-averaged parameters of plant growth, and instantaneous, time-dependent measures which require fewer assumptions for their use. [The SCI(More)
A prospective survey has been made of the injuries to members of the public attending a well established ice rink in a major city. Comparison is made with series in the literature reporting high levels of injuries, with corresponding demands on local hospital services, from newly established ice rinks. The main conclusion is that demands on hospital(More)
Gilbert White, once curate of Selborne in Hampshire, is rightly famed for his classic descriptions of bird, mammal and insect behaviour and status in the eighteenth century, and immortalised in The Natural History of Selborne. Perhaps not so well known, however, is his interest in the public health of his parish, his respect for the individual, even if(More)
Once, while in country practice, I was asked to see an inexperienced farm worker who had lacerated a leg by the over-zealous use of a scythe; the telephone message stated that the wound was bleeding badly. On arrival at the farm, however, I found no panic and, on inspecting the deep wound, I found very little blood. The laceration had been packed with(More)
As I was watching a lapwing Vanellus vanellus sitting on hard-set eggs on a piece of rough pasture, a man leading a terrier came along. Through my binoculars, I saw the lapwing becoming increasingly anxious and, when the intruders were about 200 metres away, the bird ran off to trail a wing in front of them. The restrained dog clearly wanted to chase the(More)
It was not until I entered general practice that I realised how difficult it was to plan the work of a given day in that occupation. Domiciliary midwifery took a lot of time and an expected date of delivery could only be an approximation; and influenza epidemic made life a chaotic rush and even outbreaks of measles or chicken pox made the visiting list(More)
General Practitioner (Rtd.), Westbury-on-Trym When we speak, loosely, of the structures we call mushrooms and toadstools, we refer to the fruiting bodies of fungi. Fungi, unlike green plants which absorb carbon dioxide from the air, obtain their nutrients by breaking down the tissues of wood, leaves, roots or, occasionally, animals, either living or dead.(More)
No doctor can escape some degree of association with birds in the course of his professional life. The general practitioner, as he examines yet another case of Salmonella food poisoning, might well ponder about this, particularly as he tells his patients that they have allowed insufficient time for the thawing out of a frozen chicken or turkey before its(More)
The goddess of health, Hygieia, was much ven-erated, understandably, in the ancient Greek world; her numerous statues usually represented her holding a serpent. Hygieia's father was Aesculapius, the god of medicine, who developed his clinical skills as physician to the Argonauts and made use of herbs in treatment; the serpent and the cock were considered(More)