u6 THE CREATION OF MATTER 



skeleton; (4) the cell layer, which forms the inner 

 covering of the body wall. III. The third or intestinal 

 fibrous layer develops (1) the endoccelar, or layer of cells 

 covering the outer surface of the whole intestine; (2) 

 the heart and the great blood-vessels of the body, the 

 great blood channels or arteries going from the heart, the 

 great veins passing to the heart as well as the blood 

 itself; (3) the muscular tube of the intestines, i.e. the 

 whole of those fibrous and fleshy parts which form the 

 outer part of the intestinal canal, as well as the mesentery, 

 the thin fibrous membrane by which the intestinal canal 

 is connected with the ventral side of the vertical column. 

 IY. The fourth or intestinal glandular layer gives the 

 intestinal cellular covering, with the lungs, liver, salivary, 

 and other glands. 



Thus do egg-cells accomplish great things. They feed, 

 they increase in size. They divide. They multiply. 

 They advance in certain directions, and build up typical 

 forms. They bend, they differentiate. They form two 

 layers, they form four layers. They take up in each 

 layer at each point the measure and kind of food they 

 need for their special place and work. They begin to 

 weave their respective parts and tissues. They advance 

 steadily. Each part builds up, and in a marvellous 

 manner collocates, the portion of the fabric required of 

 it until the whole is completed. 



Consider here (1) the greatness of the work the ovules 

 perform. The burden laid on them is overwhelmingly 

 heavy. The structures they have to raise are, we are 

 ready to say, of a complexity requiring infinite care and 

 skill. The bodies of a dog, an ox, a horse, a man are 

 magnificent. Their systems of bones and joints, of 

 muscles and nerves, of flesh and blood, of internal organs 

 and external senses, their general strength and power 



