This male specimen was prepared for microscopic examination around 1910. It was fixed in formol, embedded in paraffin and serially sectioned transverse to the long axis at 40 microns. The sections were mounted on 39 large glass slides and stained with alum cochineal (carmine). There are 397 sections through the embryo.
The Browse part of the DREM database includes 200 of the 397 sections. Approximately every other section was digitally restored and labeled, and can be viewed at four magnifications. Several 3D reconstructions were produced from the aligned sections, and animations of these reconstructions together with fly-through animations of the aligned sections are also included on the disks. For anyone who wishes to use them for other reconstructions, research or presentations, the full size section images are available as individual .jpg files. These images are also available in archive files of the aligned low resolution images.
Instructions for using the disks can be found by going to the Instructions section from the opening screen.