Dwarfs generally die from premature old age, and giants from exhaustion. A curious instance of marvellous growth is recorded in a tract called "_Prodigium Willinghamense_," or an account of a surprising boy who was born at Willingham, near Cambridge, and upon whom the following epitaph was written:--"Stop, traveller, and wondering, know, here buried lie the remains of Thomas, son of Thomas and Margaret Hall; who, not one year old, had the signs of manhood; at three, was almost four feet high, endued with uncommon strength, a just proportion of parts, and a stupendous voice; before six, he died as it were at an advanced age." Mr. Dawker, a surgeon of St. Ives, Huntingdon, who published this account, viewed him after death, and the corpse exhibited all the appearances of decrepit old age. This is a confirmation of the case of the boy of Salamis, mentioned by Pliny as being four feet high, and having reached puberty at the age of three; and may also confirm the account of the man seen by Craterus, the brother of Antigonus, who in seven years was an infant, a youth, an adult, a father, an old man, and a corpse. The experiment of Dr. Berkeley, bishop of Cloyne, to ascertain the influence of food in promoting extraordinary growth, is curious. He selected for this purpose an orphan child of the name of Macgrath; and, by dint of feeding, at the age of sixteen he had grown to the height of seven feet; but his organization had been so exhausted by this forced process, that he died in a state of moral and physical decay at the age of twenty. In the development of organized bodies, the effects of light contribute materially. Dr. Edwards, an English physician in Paris, and one of our most distinguished physiologists, has shown that by excluding tadpoles from the light, they will grow to double and triple their ordinary size, but are not metamorphosed into frogs. He thinks that the _Proteus Anguinis_ is the first stage of an animal prevented from growing to perfection by inhabiting the subterraneous waters of Carniola. The influence of food on the changes of animals is further shown in the aphidivorous flies, that are larvae for eight or ten days, pupae for about a fortnight, and perfect insects in about the same time, in the whole living about six weeks; whereas a pupa deprived of food underwent no change, and lived for twelve months. Rapid development of the organism invariably brings on premature dissolution. A case is recorded of a girl who cut four teeth at the end of the first fortnight; walked about, and had hair reaching to the middle of her back after the seventh month; exhibited signs of puberty at the ninth month, but perished in a state of exhaustion in her twelfth year. Dr. Comarmond, of Lyons, relates the case of a female infant, who was perfectly developed at the age of twenty-seven months, but she sank under rachitis when she had attained her twelfth year.