56 



248. Enlarged model of the silkworm, constructed to 

 take to pieces to show its anatomy. 



E. 5. 1873. Made by the late Dr. Auzoux, Paris. 



The model is separable into the following sections, each of 

 which has its component parts numbered in correspondence with 

 a descriptive pamphlet in French. 



1. Dorsal portion of the body wall showing the integument 

 and muscles. 



2. Digestive apparatus. 



3. Vessels and muscles of the head. 



4. 5. Silk-spinning organ on the Bright and left sides. 

 6. Anterior portion of the nervous system. 



7-11. Straight superficial central muscles of the various 

 segments. 



12. Inferior portions of the body with the buccal organs. 



13. Left-hand segment of the lower portion of the body. 



249. Enlarged model of a piece of honeycomb, with 

 the different kinds of bees upon it. Most of these are 

 constructed so that they may be taken to pieces to exhibit 

 their anatomy. 



E. 6. 1873. Made bij the late Dr. Auzou, Paris. 



A. The Queen Bee. The upper wall of the abdomen may be 

 removed, showing the heart, trachea, and digestive canal, which 

 in its turn may be taken out and its different parts examined. 

 The structure of the sting and of the generative organs is also 

 exhibited. 



B. Tlie Worker Bee. The upper wall of the abdomen is simi- 

 larly movable, showing the different arrangement of the organs 

 from those in the last form. 



C. The Worker Bee carrying a mass of wax under the abdomen 



D. The Worker Bee bearing a load of pollen. 



E. The Nursing Worker Bee laden with propolis. 



F. The Drone. The upper part of the abdominal wall can be 

 lifted off to show the digestive canal and the male generative 

 organs. 



G. The Comb, showing : 1, the royal cell ; 2, cell filled with 

 honey ; 3, cell with embryonic male ; 4, cell with embryonic 

 worker ; 5, empty cells ; 6, eggs not hatched, less than three 

 days old ; 7, young larvae ; 8, soft pulp for feeding the larvae ; 



9, cells opened to show the pupa enveloped in its protective coat ; 



1 0, protective coat opened; 11, bee issuing from the cell; 12, 

 cell filled with pollen. 



250. Models in plaster and glass of invertebrate animals 

 which either because of their fugitive colours, delicacy 



