GEORGE PERKINS MARSH. 4-i7 



The practical photographer speaks to-day of loading the molecules by 

 putting various gums into emulsions in order to make the molecules 

 vibrate slower. This metaphorical expression is extremely suggestive, 

 and opens to the imagination the immense field iu which Dr. Draper 

 was a master. Photography has already shown us the solar spectrum 

 far beyond the limits of the visible red, and it is said that, had Dr. 

 Draper lived even thi'ough the brief space of a twelvemonth longer, 

 he would have succeeded in photographing stars which could not be 

 detected, through the telescope he was using, by the eye- 



GEORGE PERKINS MARSH. 



George Perkins Marsh was born at Woodstock, in the State of 

 Vermont, on the loth of March, 1801. He was elected an Associate 

 Fellow in Class III., Section 2, of the Academy, on the 29th of Jan- 

 uary, 1851. He died at Vallombrosa, in Italy, on the 24th of July, 

 1882, closing peacefully a long career of great and unceasing useiul- 

 ness in the service of the republic and of learning. 



AVe cannot wonder that the death of a man so pure, so kindly, so 

 noble and earnest in purpose, and so strong in deed, should call forth, 

 as it does, the reverent and loving sorrow of two nations that he loved 

 perhaps equally, and which he had successfully striven to bring into 

 relations of serviceable friendship during the years in which he repre- 

 sented the one at the court of the other. This republic has lost a 

 loyal, watchful, wise, and able servant, who has caused its name to be 

 honored and loved, not only by reason of his eminent diplomatic ser- 

 vices during twenty-five years, but also by the power of his personal 

 worth. United Italy grieves as for a foster-father, who brought to 

 the help of its trembling infancy the strong sympathy of a stuixly re- 

 public in the vigor of its early prime. Perhaps it will never be fully 

 known how jrreatly this noble man strengthened the hands of both the 

 kings of new Italy, as they struggled to break away from the chains 

 of priestcraft and the relics of feudalism into the freedom of self- 

 government. 



How high a rank our late Associate held as a student and expounder 

 of truth in the fields of natural science, of philosophy, of political 

 economy, of archaeology, of philology, and of literature, is attested 

 by the many learned societies, both in this and in other countries, that 

 deemed it an increase of honor to themselves to write his name in 

 their lists of members. 



What Mr. Marsh was as a friend and counsellor is happily known 



