ILLUSTRATIONS 



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Fig. 105. — Semidiagrammatic horizontal section through the dorsal border of the olfactory 

 bulb and dorsal sector of the anterior olfactory nucleus of the adult. X 50. The medial border 

 (at the right) is slightly inclined ventrally. The diagram is based on sections of a single speci- 

 men. The details pictured have all been observed, but the assembling is a .schematic composi- 

 tion ('34, fig. 1). The histological structure of the olfactory bulb as seen in horizontal sections 

 is shown in figure 110. Figure 105 is a similar diagram at a more dorsal level. Two mitral cells 

 (1) are drawn and a typical granule cell (2). Two elements of transitional type (3) in the 

 stratum granidare send slender axons to the anterior olfactory nucleus, three neurons (//) of 

 which are drawn. Farther back there are three typical neurons of the primordium hippocampi 

 (6') and one of the primordium pirifornie (-5). 



f, I aft. 



