Provided is a staining kit which does not require the production of a thin section, enables the staining of a biological tissue that cannot be cut into a thin section, and can achieve accurate and rapid pathological diagnoses.

Preparation of adult Drosophila eyes for thin sectioning and microscopic analysis.

Analog signals corresponding to color images or pixels of a thin section of a rock reservoir are digitized and then filtered to isolate the pixels representative of pores in the thin section.

Optimal regeneration occurs when a basal surface of the thin section is oriented so as to be substantially not in contact with the culture medium.

In petrographic thin section, the most distinguishing features of pyrope are those shared with the other common garnets: high relief and isotropy.