Biographical Sketch of Henry McCalley— Smith. 199 
and it gave great help to those who were engaged in the 
development of the state. 
Next he took up the study of the plateau portion of 
the Warrior field in northeastern Alabama, and his report 
on the coal measures of this section was published in 1881. 
His next work was in the Paleozoic formations of the 
Tennessee, Coosa, and other great valleys in which occur 
the limestones, iron ores, and bauxites of the state and the 
results of several years work in this section were pub- 
lished in 1896 and 1897 under the title "The Valley Re- 
gions of Alabama," part I being devoted to the valley of 
the Tennessee and part II to the- Coosa and other anti- 
clinal ^'alleys, Cahaba, Wills', Jones', and Blount Springs 
valleys. 
The great activity in coal mining during the ten 
years following the publication of the report of 1886 on 
the ^^"arrior basin, rendered necessary a reexamination, 
and more thorough study of the field, and Mr. McCalley 
spent much time in going again over the ground with Mr. 
George N. Brewer as an assistant, and in 1890 appeared 
his report on the AVarrior basin, with a large map. 
Since 1900 his work has been in the region of the 
igneous and metamorphic rocks upon which he was en- 
gaged at the time of his death. Unfortunately his notes 
on this region were not written up though quite full and 
comprehensive. This will make it impossible to get the 
full l)enefit of his work. 
In personal character Mr. McCalley was modest and 
somewhat retiring but no one could be more firm and de- 
cided than he in the defense of a friend and in the defense 
of his own opinions on geological matters after he had 
formed them from his own extended observations. In 
his scientific work he was careful and painstaking to an 
extraordinary degree, and his conclusions were rarely 
hastily formed, and they were in consequence generally 
correct. He was one of the most truthful of men and he 
could be relied upon to do to the best of his ability whatever 
work was assigned to him. When called upon to give his 
views he did it with the utmost frankness, swerving neither 
to the right nor the left from the straight path of truth. 
