iV THE OOLOGIST 



THE MAPLEWOOD 



Biological Laboratory 



Offers a New Preparation Showing the 

 Anatomy of an Eighteen Day Old Em- 

 bryo of the Common Chicken in 

 Four Preparations 



No. 1, Cross sections through the head show= 



ing the head cavity containing brain, eye, etc. 



No. 2, The digestive organs entire. 



No. 3, The tongue. 



No. 4, The feet and legs. 



The specimens within the jar are attach- 

 ed to a transparent glass plate, thus a 

 rear as well as a front view is afforded. 



Mounted in i 3 inch glass cylinders with 

 heavy base. Price per jar containing 

 the four preparations as described above 



$8.50 Delivered 



P. G. HOWES 



The Maplewood Biological Labor, tory 

 Stamford, Conn. 



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