“…21). Literature descriptions include: 98 mm hair, pigmentation and claws distinct (Evans and Sack, 1973), 70–120 mm lanugo (Sainmont, 1906), 103 mm (Windle and Griffin, 1931), 108–125 mm (Schnorr, 1989), corpus callosum is elongated and the sulcus coronalis, suprasylvius lateralis, sylvii, cruciatus, splenialis are formed (Martin, 1894a, b, 1895), first neurotransmitters in the brain (Chun and Shatz, 1989), in the retina all layers are formed (Ramoa et al, 1988), and start differentiation (Rapaport and Stone, 1983), the gland of the third eyelid starts its development, also the tarsal glands, first signs of iris muscles, the irido‐corneal region is fully developed, blood vessels at the cornea‐scleral junction are well outlined (Bernis and Wyman, 1980), first astrocyts in the optical nerve (Ling and Stone, 1988), vestibular nerve in the promyelin stage (Romand et al, 1976; Berthold et al, 1983), stage of terminal sacs of the lung (Glöckel, 1984), gustatory glands (Tichy, 1993), the prenatal differentiation of the salivary glands starts (Knospe and Böhme, 1995), first glandular branches in the stomach, the penis is differentiated, but the corpus cavernosum is still weaker as the corpus spongiosum, the prepuce is still connected (Martin, 1890c), 11.5–14.5 cm, 49–55 days, ossification of the humerus epiphyses, os pubis, os tarsi tibiale, os tarsi fibulare and toes (Schaeffer, 1932), articular cartilage becomes smooth (Horky, 1993, 1994), muscle blastemes with distinct fibres (Hoh and Hughes, 1989), lanugo, 90–120 mm, hair, wrinkles and pigment pattern of the skin is distinct (Günther, 1994), first sebaceous glands in the mentum (Backmund, 1904), proliferation of the labial gland (Künzel and Knospe, 1986), primary branches of the mammary gland, hairs free, first sebaceous glands (Gisler, 1922; Turner and DeMoss, 1934), with 90 mm conus formation and with 115–125 mm cavitation of the anal sac, first follicles and glands in the skin (Schwarz, 1987; Schwarz, 1987), 116 mm, division of stratum corneum unguis into two layers and completion of stratum tectorium, paries unguis is formed, capillaries have penetrated into sulcus matricis (Kato, 1977).…”