The _Harderian gland_ is much larger than the lachrymal gland proper and is easily found. It lies in the forward part of the eye-socket and is of a somewhat three-cornered shape. From its outer and forward base it sends a short, delicate duct to open between the nictitating membrane and the eyeball. The _lachrymal canal_ is well developed in the Crocodilia. Near the forward angle of the eye, on the inner side of the lower lid, are found from three to eight tear dots, lying in a row from behind forward. Each of these dots opens into a small elongated sac. This sac opens downwards and forwards into a common canal, which canal, at first narrow but soon widening, extends for a time parallel to the free border of the eyelid and then enters the opening in the hinder side of the lachrymal bone. Rathke found none of these tear dots on the upper eyelid so concluded that the lachrymal fluid could escape only through the lower lid. This canal, which might correspond to the lachrymal sac of higher forms, is rather narrow until it enters the lachrymal bone, then it becomes considerably wider and forms a sort of reservoir that Rathke calls the “_saccus naso-lachrymalis_.” This reservoir is of irregular form and opens forwards into the base of the nasal cavity proper. The third type of gland mentioned above, the _conjunctival_, is found on the lower eyelid where the conjunctiva passes from the lid to the eyeball. The gland is of a “scattered acinose” type. The usual muscles of the eyeball are found in the Crocodilia. The four _rectus_ and two _oblique_ muscles have about the usual arrangement and are attached to the eyeball by very short aponeuroses. The _retractor oculi_ muscle is only weakly developed. It consists of two separate bundles which, lying behind the optic nerve, arise from the forward bony wall of the socket and are inserted on the sclera very near the optic nerve. The _eyeball_ consists of the usual layers, including, as might be expected from the nocturnal habits of the Crocodilia, a typical _tapetum lucidum_. In the _sclera_, instead of the bony ring common to the saurians, is found a well-developed cartilage covered with the fibrous layer of the sclera; the fibers of this layer are arranged into two more or less distinct layers. While not worked out in detail the _cornea_ consists of the usual five layers. In the _iris_ the musculature is less developed than in the birds; Bronn thinks this may be compensated for by the greater development of the “vascular structures.” The _pupil_ is a vertical slit. The _choroid_ is very closely united on the outside with the sclera; on the inside it is less closely attached to the retina except at the ora serrata. It consists of an outer fibrous coat, an inner, unstratified pigmented epithelium derived embryologically from the pigmented layer of the retina, and the ground substance which is a network of irregular and very vascular cells.