ANATO:\riCAL AND PATH()L()(JlCAL 



UBSEi:\ATI()N8.-" 



*^ AUhoiujh it slicic v(d the (tgait, yet it sJiciccth a rule and analogy in 

 nalHre, to say thai the solid jnirts of animals are endued with attrartite jwtrers, 

 whereby, from contiguous fluids, Uiey draw like to like ; and Uuit glands hate 

 jteculiar powers attractive of peculiar juices." — Bekkeley. 



*'Evcn lierein consists the essential difference, Vie contradistinction, of an 

 organ from a machine ; that not only the diaracteristic shape is evolved from 

 the invisible central jMiccr, but the material mass itself is acquired by assimi- 

 lation. The germinal power of the j)lant transmutes the fixed air aiul the ele- 

 mentary base of water into grass or leaves ; and on these the organific principle 

 in the ox or Uie clep/uint exercises an alchemy still m/>re stupendous. As the 

 unseen agency weaves its magic eddies, the foliage becomes indifferently (he bone 

 and its marrow, tlie pulpy brain or the solid ivory." — Coleridge. 



" The greater part of my sliare of these Anatomical and 

 rathological Obser\^ations will be already, to a certain extent, 

 f\imiliar to those who attended my lectures, in the theatre of 

 the Eoyal College of Surgeons, in summer 1842, and winter 

 1842-3. 



" The Memoir on the Secreting Structures is reprinted in 

 a modified form from the Transadioiis of the Eoyal Society 

 of Edinhuryh for 1842, and that on the Intestinal Villi from 

 the Edinhuryh Pltilosophiml Journal of tlie same year. 

 Those on the Placenta and Lymphatic Glands were read in 

 the Eoyal Society of Edinburgh in 1843, but were not sub- 



* Tlic thirteen suceeeding Meinoii-s were imlilisheil by Jlmiiluiil, EJiuburgh, 

 184r>, ill an ocbivo volume, entitled Anatomical and PatJiolugical Observations, 

 and were jH-eoeiUHl by the acconiiMinying preface. — (Ens.) 



