CONTENTS. 



Page. 



On the Differential Reaction to Vital Dyes Exhibited by the 

 Two Great Groups of Connective-Tissue Cells. By Her- 

 bert McLean Evans and Katharine Scott. 



Introduction 3 



Evidence of the similarity in nature of the fibroblast and macrophage "dye bodies" 29 



Characteristic differences in the macrophage and fibroblast response to Azo dyes 36 



Summary 48 



Bibliography 49 



Explanations of plates 52 



The Skull of a Human Fetus of 43 Millimeters Greatest Length. 

 By Charles C. Macklin. 



Introduction 59 



Description 60 



The skull as a whole 60 



Occipital region 61 



Otic region 68 



Orbi to-temporal region 74 



Ethmoidal region 80 



Cartilaginous branchial-arch skeleton 84 



Membrane bones 86 



Summary 95 



Bibliography 98 



Explanations of figures 99 



Abbreviations 102 



Color scheme of plates 103 



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