IN the midbrain of the chicken embryo a close relationship has been ... the rate of growth on any one day being expressed as the difference in the logarithmic value (in mm. to the base 10) on ...

Figure 2: In this 5-day-old chicken embryo imaged with an Olympus SZX12 stereo microscope equipped with fluorescence optics, GFP can easily be detected in the spinal cord. It is also important to ...