NOTES. 377 
nent blood-formative organs. He looks upon the blood corpuscle 
as a gland-cell destined to promote within itself the transformation, 
into other elements, of certain materials derived from the liquor 
sanguinis, and when matured to give back directly “to the liquor 
sanguinis, by its final dissolution, its secretion, consisting of its 
own bod 
SUBSTITUTE FOR THE CAMERA Lucipa.—Mr. W. Kesteven, Jr., 
substitutes the thinnest possible cover-glass for the tint-glass com- 
monly used for camera lucida purposes. He does not appear to 
suffer from the difficulty of too great transparency which has de- 
terred others from its use. 
NOTES. 
Two months ago, in announcing the provision made by the Leg- 
islature of Kentucky for a geological survey, we asked whether 
the time were not coming for a careful geological and zoological 
survey of Massachusetts. Since then, active measures have been 
taken to secure this result. The American Academy of Arts and 
Sciences (the oldest and highest scientific body in the state) has 
petitioned the Legislature, and a memorial, referred at first to the 
Committee on Education, has now been placed in the hands of the 
Board of Education with instructions to investigate the matter and 
report at the assembling of the next legislature. The memorial 
of the Academy, before its adoption, was thoroughly considered 
by a special committee, consisting of the President (Hon. Charles 
Francis Adams) Professors William B. Rogers and T. Sterry 
Hunt, and Messrs. George B. Emerson, Alex. Agassiz, S. H. 
Scudder and R. H. Dana, Jr., so that we can have no doubt of a 
favorable report from the Board of Education. 
The publications of such a survey, says the Academy, in its 
memorial, should embrace a detailed topographical map, on a scale 
of about an inch to a mile, maps colored to show the distribution 
of rock-formations and economic minerals, with charts on a larger 
scale of particular localities, having special interest or importance ; 
sections and explanatory text to accompany these maps, embrac- 
ing descriptions and analyses of the rocks and ores and of the 
waters, and investigations into the strength and durability of our 
building-stones ; full descriptions and truthful illustrations of the 
animals and plants, including their natural history, transforma-_ 
tions and relations to man and his requirements. 
