Description | Regarding his plates and letter of 19 May, he can be assured on the reduction in size. All have been reduced together photographically, so that there is no occasion to measure each figure. The slight reduction amounts to one tenth. The lithographer has been seen about the representation of the full cells with upper and lower chromosones. It is a matter of register. The register at present is not quite perfect, hence the underlying grey shows here and there where it should not. Requests back all the originals for this purpose. If he were to visit it would be an additional safeguard to meet the points raised in his letter. |