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us urinarius; on each side of which is an opening leading into a cavity, resembling the horn of the uterus in the quadruped, only thinner in its coats. Each of these cavities terminates in a fallopian tube, which opens into the capsule of an ovarium. The ovaria are very small; they were not in a very perfect state of preservation, but bore a general resemblance to those of other quadrupeds. This structure of the female organs is unlike any thing hitherto met with in quadrupeds; since in all of them that I examined, says Mr. Home, there is the body of the uterus, from which the horns go off as appendages. The opossum differs from all other animals in the structure of these parts, but has a perfectly formed uterus; nor can I suppose it wanting in any of the class Mammalia. This animal, having no nipples, and no regularly formed uterus, Mr. Home says, he was led to examine the female organ in birds, to see if there was any analogy between the oviducts in any of that class, and the two membranous uteri of this animal; but none could be observed; nor would it be easy to explain how an egg could lie in the vagina to receive its shell, as the urine from the bladder must pass directly over it. Finding they had no resemblance to the oviducts in birds, Mr. Home was led to compare them with the uteri of those lizards which form an egg, that is afterwards deposited in a cavity corresponding to the uterus of other animals, where it is hatched; which lizards may therefore be called ovi-viviparous; and I find, says Mr. Home, a very close resemblance between them. In these lizards there are two uteri, that open into one common canal, or vagina, which is extremely short; and the meatus urinarius is situated between these openings. The coats of these uteri are thinner than those of the uteri of quadrupeds of the same size. In the ovi-viviparous dog-fish, the internal organs of the female have a very similar structure. There is therefore every reason to believe, that this animal also is ovi-viviparous in its mode of generation. * * * It appears, by accounts which have been received from New South Wales, that the voyage of the small brig _Lady Nelson_, commanded by Lieutenant Grant, was (notwithstanding her size, being only 60 tons burden, and the distance she had to sail) effected without her meeting with any material accident; she arriving in December 1801. Her commander was so perfectly acquainted with her good qualities, that
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