54 Bibliographical Notices. 



the brachial our author has not perceived this disposition. Such 

 an arrangement of the arteries is observed in the Bradypus, an 

 animal of strictly arboreal habits. When the muscles of the ex- 

 tremities are engaged in climbing and in supporting the weight of 

 the body, by strong and continuous contractions, thus requiring a 

 large supply of blood, under circumstances, as to gravity and com- 

 pression of the vessels, highly unfavourable to its transmission, this 

 admirable plexiform disposition of the arteries overcomes every im- 

 pediment. In agreement with this structure. Dr. Andrew Smith, 

 and other observers of different species of Galago in their natural 

 state, speak of them as active denizens of the trees. Dr. A. Smith 

 says he first met with the Moholi near the Limpopo river, seated 

 upon trees. "They were very active, springing from branch to 

 branch and from tree to tree with extraordinary facility, and always 

 seized the branch on which they intended to rest. In their man- 

 ners they considerably resembled the monkeys, particularly in their 

 grimaces and gesticulations." 



■ Dr. Kingma tells us the prostate is of moderate size. It is situ- 

 ated behind against the neck of the bladder. Posteriorly and infe- 

 riorly it bears two papillary appendages, which are 8 mm. long and 

 3 to 4 mm. thick. Apparently tliey do not appertain to the tissue 

 of the prostate, yet they are very closely connected with it. In 

 M. J. V. d. Hoeven's plate these appendages are, we conclude, some- 

 what more accurately exhibited as situated at a little distance in 

 front of the prostate, in fact separated from it by the prostatic por- 

 tion of the urethra. It seems that these appendages are hollow, and 

 are internally furnished with folds, so that the internal superficies 

 has a reticulate appearance. Both cavities stand in connexion with 

 each other by means of a duct, which joins its fellow anteriorly. On 

 the opening of these appendages, a turbid fluid came to light. In 

 this the microscope revealed vesicles of a spherical or oval form, 

 composed of a capsule filled with transparent fluid. 



The surface of the hemispheres of the brain exhibits no convolu- 

 tions whatever, in this respect presenting a dissimilarity to the higher 

 quadrumanous animals. All the organs of the senses exhibit struc- 

 tures of high development, which we must not further dwell upon. 

 The pupil is round. The large eyes render it apparent that the 

 Otolicnus Pell seeks its prey by night, and hides itself by day, — 

 facts which we have alluded to before. 



"We have now given a suflicient account of some of the peculiarities 

 of structure brought to light by our author, so carefully described 

 by him, and many of them so accurately delineated by the pencil of 

 his friend and coadjutor. This brings us to remark, that the prefa- 

 tory portions of Dr. Kingma's "Specimen Inaugurale" present a 

 most pleasing indication of its author's right feeling. To whom 

 could he so properly dedicate this first result of his researches as to 

 his father, and in what simpler and more touching words than these, 

 ** Aaji mijn' Vader" ? lie pours out his grateful thanks to the ex- 

 cellent Professor J. Van der Hoeven in affectionate language, which 

 we know is as just as it is cordial, — to the learned Halbertsma, Pro- 



