Volume 1 PART I. INTRODUCTION --------------------------------------------------------------------------------------------1 Organization of the Atlas ------------------------------------------------------------------------------------1 Specimens and Collections ----------------------------------------------------------------------------------1 Plate Preparation ----------------------------------------------------------------------------------------------2 3-Dimensional Computer Reconstructions----------------------------------------------------------------2 Identification of Transient and Immature Brain Regions ---------------------------------------------2 References ------------------------------------------------------------------------------------------------------8 PART II. 4.0 mm Crown Rump (CR) Length, M714 -------------------------------------------------------------10 Plates 1-13 A/B --------------------------------------------------------------------------------------------11-37 PART III. 3.5 mm CR, C7724 ------------------------------------------------------------------------------------------38 Plates 14-21 A/B ------------------------------------------------------------------------------------------40-55 High Magnification Plates 22-26 A/B ------------------------------------------------------------------56-65 PART IV. 4.0 mm CR, C836 --------------------------------------------------------------------------------------------66 Plates 27-37 A/B -------------------------------------------------------------------------------------------68-89 PART V.

4.5 mm CR, C9297 ------------------------------------------------------------------------------------------90 Plates 38-46 A/B -----------------------------------------------------------------------------------------92-109 High Magnification Plates 47-51 A/B --------------------------------------------------------------110-119 Volume 2 PART I. INTRODUCTION --------------------------------------------------------------------------------------------1 Organization of the Atlas ------------------------------------------------------------------------------------1 Specimens and Collections ----------------------------------------------------------------------------------1 Plate Preparation ----------------------------------------------------------------------------------------------2 3-Dimensional Computer Reconstructions----------------------------------------------------------------2 Neurogenesis in Specimens (CR 6.3-10.5 mm) ----------------------------------------------------------2 References ----------------------------------------------------------------------------------------------------14 PART II. 6.3 mm Crown Rump (CR) Length, M2300 -----------------------------------------------------------16 Plates 1-13 A/B --------------------------------------------------------------------------------------------18-43 PART III. 7.

1 mm CR, C8966 ------------------------------------------------------------------------------------------44 Plates 14-20 A/B ------------------------------------------------------------------------------------------46-59 High Magnification Plates 21-22 A/B ------------------------------------------------------------------60-63 PART IV. 8.0 mm CR, C8314 ------------------------------------------------------------------------------------------64 Plates 23-32 A/B -------------------------------------------------------------------------------------------66-85 PART V. 10.5 mm CR, C6516 -----------------------------------------------------------------------------------------86 Plates 33-37 A/B ------------------------------------------------------------------------------------------88-97 High Magnification Plates 38-47 A/B ----------------------------------------------------------------98-117 PART VI. 10 mm CR, M1000 -----------------------------------------------------------------------------------------118 Plates 48-61 A/B ---------------------------------------------------------------------------------------120-147 High Magnification Plate 62 A/B -------------------------------------------------------------------148-149 Volume 3 PART I. INTRODUCTION --------------------------------------------------------------------------------------------1 Organization of the Atlas ------------------------------------------------------------------------------------1 Specimens and Collections ----------------------------------------------------------------------------------1 Plate Preparation ----------------------------------------------------------------------------------------------2 3-Dimensional Computer Reconstructions----------------------------------------------------------------2 Neurogenesis in Specimens (CR 15 to 18 mm) ----------------------------------------------------------2 References ----------------------------------------------------------------------------------------------------20 PART II. 15 mm Crown Rump Length, C9247 --------------------------------------------------------------------22 Plates 1-7 A/B ----------------------------------------------------------------------------------------------24-37 High Magnification Plates 8-21 A/B---------------------------------------------------------------------38-65 PART III.

15 mm Crown Rump Length, M2051 -------------------------------------------------------------------66 Plates 22-38 A/B -----------------------------------------------------------------------------------------67-101 High Magnification Plate 39 A/B --------------------------------------------------------------------102-103 PART IV. 15.8 mm Crown Rump Length, C492 ------------------------------------------------------------------104 Plates 40-56 A/B ----------------------------------------------------------------------------------------106-139 PART V. 18 mm Crown Rump Length, C1390 -------------------------------------------------------------------140 Plates 57-63 A/B ---------------------------------------------------------------------------------------142-155 High Magnification Plate 64 A/B -------------------------------------------------------------------156-157 PART VI. 17.5 mm Crown Rump Length, M2155 ----------------------------------------------------------------158 Plates 65-81 A/B ---------------------------------------------------------------------------------------160-193 High Magnification Plates 82-84 A/B --------------------------------------------------------------194-199 Volume 4 PART I. INTRODUCTION --------------------------------------------------------------------------------------------1 Organization of the Atlas ------------------------------------------------------------------------------------1 Specimens and Collections ----------------------------------------------------------------------------------1 Plate Preparation ----------------------------------------------------------------------------------------------2 3-Dimensional Computer Reconstructions----------------------------------------------------------------2 Neurogenesis in Specimens (CR 21 to 23 mm) ----------------------------------------------------------2 References ----------------------------------------------------------------------------------------------------24 PART II. 21 mm Crown Rump Length, C6202 --------------------------------------------------------------------26 Plates 1-7 A/D ---------------------------------------------------------------------------------------------28-55 High Magnification Plates 8-21 A/B---------------------------------------------------------------------56-71 PART III.

23 mm Crown Rump Length, C966 ---------------------------------------------------------------------72 Plates 22-36 A/B -----------------------------------------------------------------------------------------74-115 3-D Reconstructions: Figures 22-31 ----------------------------------------------------------------116-125 Volume 5 PART I. INTRODUCTION --------------------------------------------------------------------------------------------1 Organization of the Atlas ------------------------------------------------------------------------------------1 Plate Preparation ----------------------------------------------------------------------------------------------2 Development in Specimens (CR 31 to 33 mm) ----------------------------------------------------------2 References ----------------------------------------------------------------------------------------------------17 PART II. 32 mm Crown Rump Length, C609 ---------------------------------------------------------------------18 Plates 1-10 A/B --------------------------------------------------------------------------------------------20-39 High-Magnification Plates 11-16 A/B-------------------------------------------------------------------40-51 PART III. 31 mm Crown Rump Length, C9226 --------------------------------------------------------------------52 Plates 17-36 A/B ------------------------------------------------------------------------------------------54-93 High-Magnification Plates 37-38 A/B-------------------------------------------------------------------94-97 PART IV. 33 mm Crown Rump Length, C145 ---------------------------------------------------------------------98 Plates 39-48 A/D ---------------------------------------------------------------------------------------100-139 High-Magnification Plates 49-63 A/B----------------------------.