——————— 
S, JEFFERSON’S VALEDICTORY ADDRESS. or 
sounding tube. In the early part of her voyage she supplemented 
the information on the Globigerina ooze which had been yielded 
by the soundings for the Atlantic cable. It was determined that 
although at a depth of 12,000 feet these shells are abundant and 
in beautiful preservation, yet when a depth of 15,000 feet is at- 
tained no shells are found at all. 
During 1873 she crossed and recrossed the Atlantic four times, 
making in this ocean alone over 130 soundings, and so accumu- 
lating a vast array of facts as to the nature of the sea bottom, the 
temperature at various depths, the density and constitution of the 
waters, and adding largely to our knowledge of the varied forms of 
life tenanting the ocean. Continuing her voyage past the Cape 
she examined the south part of the Indian Ocean, touching at 
Australia and New Zealand, she then made her way to Japan, 
thence to the Sandwich Islands, south to the Society Islands, 
and thence to Valparaiso. Now returning home she reached 
England during May, 1876, just at the commencement of our 
sessional year. It would be out of place for me to touch more 
fully on this important subject, for I take it we all have access to 
full accounts of this expedition. 
I cannot but thank the members of the society for the kind 
support at all times given to the President’s chair, and in looking 
back must recognize that the harmonious working of the past 
year is due, to no slight extent, to the spirit which ‘has animated 
us, one and all, to do our best forthe society and to further its 
objects. 
I am sensible I have often been away, but let me assure you 
that it has been from professional work which has pressed upon 
me with no slight weight; and I really fear that in future that 
cause Will debar me from sharing in your work so fully as I should 
wish. 
We all look forward to the coming year, when we remember 
the thorough love of science which animates our future President. 
To this society it is useless to dwell upon the varied branches 
in which Mr. Abbott is so proficient, and to whose study he is 
devoted. 
Wishing him as pleasant a year as that which has fallen to my 
lot, and with best wishes for the continued success of our society, 
I now, again thanking you, yield the post to our new President. 
