. Outlines of zoology. Zoology. Fig. 5T.—Development of Sycandra raphanus.—After F. E. Schulze. 1. Ovum. 2. Section of 16 cell stage. 3. Blastula with 8 granular cells () at lower pole. 4. Free-swimming anvphiblastula, with upper hemisphere of flagellate cells (\ and lower hemisphere of gran- ular cells. 5. Gastrula stage settled down. Ec, outer layer (ectoderm ?) ; En., inner layer (endoderm ?) ; 61., closing blastopore; , mooring amoe- boid Please note that these images are extracted from scanned page images that may have been digitally enhanced for rea

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. Outlines of zoology. Zoology. Fig. 5T.—Development of Sycandra raphanus.—After F. E. Schulze. 1. Ovum. 2. Section of 16 cell stage. 3. Blastula with 8 granular cells () at lower pole. 4. Free-swimming anvphiblastula, with upper hemisphere of flagellate cells (\ and lower hemisphere of gran- ular cells. 5. Gastrula stage settled down. Ec, outer layer (ectoderm ?) ; En., inner layer (endoderm ?) ; 61., closing blastopore; , mooring amoe- boid Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Thomson, J. Arthur (John Arthur), 1861-1933. Edinburgh, Glasgow and London, H. Frowde and Hodder & Stoughton

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Keywords: ., bookauthorth, bookcentury1800, bookdecade1890, booksubjectzoology