112 The American Naturalist. [January, 
various states. The nervous system is, if possible, exemplified even 
more fully than the others. In each room complete figures, some 
erect, others recumbent, show the general appearance of the system of 
organs to which the room is devoted ; while all around, in table cases, 
are placed a double series of models of the separate organs or parts. 
Thus around the hall devoted to the ligaments of the bones are grouped 
sections of the various articulations, while in the centre reposes a 
human figure with all articulations complete. Sections of the head 
at various levels, with vertical and partial sections, combined with 
others exposing portions of the face and neck, show the chief points 
of brain-structure, and the courses of the cranial nerves, including the 
various branches of the fifth, and Willis’ accessory. Models of the 
arms, legs, back, pelvis, etc., show the limb and body muscles down 
to those of the various digits, the levator, ani, cremaster, etc. The 
muscles of jaws and face are shown in an extensive series of models. 
The general lymphatic system is exhibited by recumbent figures; the 
positions of the various viscera by several entire figures of both sexes, 
and many partial sections. The several senses are very thoroughly 
exemplified, as are many points of histological structure. 
The entire museum, except one small private cabinet, is open free 
to both sexes and all ages every Tuesday, Thursday and Saturday, the 
authorities wisely judging that some knowledge of human structure is 
a proper and essential portion of the education of all young people. 
It is noticeable that young people, varying from mere children to 
twenty or twenty-five years of age, form the: greater part of the 
visitors. —W. N. L 
Prizes to Biological Students.—From a desire to verify his 
own researches as to the causes of failing nutrition in aging organisms, 
the undersigned hereby offers three cash prizes of $175, $125 and $100 
for the best three comparative demonstrations, by means of micro- 
scopical slides, of the blood capillaries in young and in aged tissues, 
canine or human. 
By young tissues (canine) are meant tissues from animals between 
the ages of one and two years. 
By aged tissues (canine) are meant tissues from animals not less than 
twelve years of age. 
By young tissues (human) are meant tissues from subjects between 
the ages of ten and twenty years. 
By aged tissues (human) are meant tissues from subjects not less than 
sixty-five years of age. 
