XII PREFACE. 



assisted me in bringing them out. My kind friend, Professor 

 Marx of Gottingen, has not only readily afforded me his 

 advice as to the translation of Unzer's work, but has also con- 

 tributed much valuable and interesting information respecting 

 the life and writings of his countrymen, which I have embodied 

 in the Introduction. I have also to acknowledge my obliga- 

 tions to Professor Sharpey, and Dr. Adams of Banchory, (so 

 well known to the Sydenham Society for his translations of 

 Hippocrates and Paulus ^ gin eta,) for the valuable criticisms 

 with which they favoured me when the ' Dissertation on the 

 Nervous System^ was going through the press. To these 

 three gentlemen both reader and translator owe their thanks. 



But there is one other valued name I cannot omit here without 

 injustice. To Dr. Forbes we owe the first substantial intro- 

 duction of Unzer^s work to the English reader ; to him, there- 

 fore, our thanks are also due; — and not for this service only, 

 but for many others rendered to the medical profession and to 

 medical science and literature, the value of which have yet to 

 be acknowledged. 



Of my own share in this work I have only to say, that I 

 feel I had an important trust committed to me, and laboured 

 accordingly; — laboured, it is true, with the usual drawbacks 

 of an active professional life; — and if this be admitted by the 

 critic as an excuse for errors and failures, I shall be grateful 

 to him. 



T. L. 



York; February 1851. 



