522 ORGANIC MOLECULES WHICH FORM 



after it has been exposed to the influence of 

 solar warmth while circulating through the 

 leaves. They have also been discovered in the 

 albumin of farinaceous seeds and bulbous roots, 

 the cells of flowers, and the embryo while form- 

 ing, according to many accurate observers, cited 

 by the learned Tiedmann. As might naturally 

 be supposed, these globules, as they have been 

 termed, vary in form, colour, and magnitude, ac- 

 cording to the species to which they belong, and 

 the office they are destined to fulfil. 



By the arrangement of organic molecules, in 

 series and aggregates, the primary tissues of all 

 living bodies are generated, in accordance with 

 laws no less fixed and definite than those of 

 crystallization. The lowest species of plants 

 and zoophytes, such as fungi, lichens, algae, 

 and the gelatinous animalcules, are composed 

 chiefly of cellular tissue, which in the higher 

 orders of plants is expanded into ligneous fibre, 

 bark, leaves, and flowers. The cellular tissue 

 also enters so largely into the composition of the 

 more perfect animals, that it has been often re- 

 presented as the scaffold of all the organs, and 

 the mould in which their particles are deposited. 

 The osseous, cartilaginous, fibrous, vascular, 

 serous, dermoid, and mucous membranes, are all 

 regarded as modifications of this primary tissue, 

 which is formed chiefly of albumin, arranged in 

 lamellae arid fibres variously interlaced, so as to 



