When a Male Worm (easily distinguished by the largeness of its eyes) is placed on a small Deal board, covered either with black paper or linnen which spot∣teth not, with its belly upwards, and there fixed with a very fine Needle, you will find immediately issue out of the wound in the Skin, a thin watery moisture which is the true bloud of this Worm, however it appeareth not of a Red colour as in Earth-worms, in which, as in Four-footed Animals it is Red. To open the Skin, there is nothing more fit, than a very sharp and fine small Scissers, for that the Lancets, although never so sharp, are not in this work useful, for they alwayes tear up some of the parts and strain them asunder; especially when they are of unequal hardnesses.When with a sharp fine Lancet, or the point of a sharp grounded Needle, you leisurely and with patience separate the upper Skin from the under parts, then ap∣peareth immediately the under Skin very thin and filmy, which, raised with discretion, the Muscles of the Belly appear, and not only those Muscles which extend in a straight line from one Ring of the Body to the other, but also those which are placed oblique, and transverse, and others also which serve to the motion of the Gills, the second Film appeareth also like threads, and seemeth to be fast joyned with the forementioned Muscles.Next the Muscles, appeareth and is fast joyned to them a very fine and thin Film, which I judge to be the Peritonaeum, above and under the same appeareth the Fat, which is composed of small and very thin White bladders, which contain in them the true Fat, in the form of a liquid Oil; when these bladders are viewed without a Microscope, it would easily be judged they were the Fat it self, whereas they are but as the thin and extreme tender Vesicles thereof, which con∣tain that liquid Fat. Like as it is also in man, and all other beasts, as will appear when these Fat-containing Vesicles, which are of a like proportionate magnitude 0