420 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
that acute observer, Dr. C. E. Beecher, of Yale, who has applied 
Hyatt’s principles of growth and decline to the paleozoic brachiopods, 
and Dr. R, T. Jackson, of Harvard, who has not only discussed the 
lamellibranchiate molluscs from Hyatt’s standpoint but has made 
additions to Hyatt’s nomenclature. 
Hyatt was constant in his friendships, his manners were always 
courtly. He rarely discussed local or national politics, though he 
held pronounced views on these subjects. He was absolutely 
indifferent to adverse criticism, for, with a natural sense of justice, 
he permitted others to enjoy their own opinions. He regarded 
with equanimity and even kindness the inability of his friends to 
grasp fully the principles which he had enunciated and in which he 
was completely absorbed. Fully convinced that time would prove 
the truth of his views, he never expressed any impatience at their 
slow recognition. He was never aggressive, but pursued with 
infinite assiduity and slow German patience the various investiga¬ 
tions he entered upon at different times. 
Science has indeed met with a verv great loss, and those who 
knew him and loved him are inconsolable. 
ADDRESS OF PROF. ALPHEUS S. PACKARD. 
Mr. President, — 
It has been assigned to me on this memorial occasion, to give my 
impressions of the value to science of Professor Hyatt’s investiga¬ 
tions. 
His work was mainly confined to zoology, to a study of the 
morphology and phylogeny of the molluscs and allied groups, but 
more especially to the fossil cephalopods. 
While he may be regarded as a specialist, having devoted the 
greater portion of his life — some forty years — to the study of the 
cephalopod mol uses, particularly the ammonoids, he was also an 
all-round man, a thinker, a generalize!*, a philosopher. Whatever 
problem he attacked, — and his selection of problems was character¬ 
istic, for they all had an evolutional bearing, or related to the laws 
of heredity, — he not only worked out the facts with great skill and 
patience, exhibiting a Teutonic power of concentration and dogged 
l^erseverance, but throughout his special labors, he constant!v 
