Miscellaneous Intelligence. 309 
3. On the construction and verification of Metric Standards for the United 
States; by J. E. Hilgard. 
4, Organic arco of the eo: and coop Nei of Seeds; by T. CO. Hilgard 
e Influence of the Moon on the Crust of the Earth; by Clinton Roosevelt. 
6. On Chemical quirainatey by 8. D. Till 
7. On the Transmission of Heat; by 8. D. T 
ody Relation between the Distances and cree Motions of the Stars; by T. 
ff 
9. On the fe rege ero of October, 1870; by Charles Whittlesey. 
10. An inquiry co — = e Physical Relations between the Masses and Mean 
scghe of the Minor Planets; by Daniel Kirkwood 
oa . On the Distribution of he Mean odoraint of the Minor Planets; by Daniel 
12. Note on the nbc LS the Solar noe by Daniel Kirkwood. 
13. On sane probable age of tin! ’s Comet; by Daniel Kirkwoo 
14. Longitude Dete saan gs across the Cor tinent; by George W. ‘Dean. 
15. On Je Mutual ee of Electric Currents; by E. B. Elliott. 
16. tion; F. Walling. 
17. The | Chemical Equivale nt of Aither; by H. F. W 
18. The co-relation of Electricity and Ch coat Hee Walling. 
= On a form of Boomerang in use among the Mogni oe’ Indians of North 
; by C. 
BRT An pmprovement of Eggertz’s Method of determining Carbon in Steel; by 
1. The Yo ur Great Eras in Modern Astronomy; by Jacob Ennis. 
22, “spade ; by Jacob Ennis. 
23. The cause of Stellar Heat and Light ; 
24, The tnaachas and ——- omposton ott ms arent that fell on May 
21, near Searsmont, "Main ; by J. Lawrence Sm: 
A deseription of the e exact locality ‘of the 1 alo masses of Meteoric Iron 
in Cohahuil , Mexico, with the eR HT of one recently discovered; by J. Law- 
Tence Sm oe 
26. A co 
nvenient rtain method of ae a constant level of Water in 
hatte oF etn tory; by J. La ith. 
het aos on the Onuiaber and other ‘Minerals from California; by J. Law- 
ce Smith. 
“+ A new and ready method of making Platinum black ; by J. Lawrence Smith. 
bys : ih ready mee of separating the Alkalies, on a large eek from Lepidolite 
site rence 
ew nate pa enient apps Gravity Flask; by J. Lawrence Smith. 
31 On — Evha harmonic Scale of 31 tones in the octa ave, and a new practical key- 
ponding the accepted musical notation ; by P. H. Van der babii 
32, On ¢ Oblique Microscopic Examination, and a new, simple apparatus fo 
a by P. H. Van der Weyde 
e ~ 
; the 
lines or bands in the same: we H. ve der We de. 
y P. an y' 
On a new and more ‘perfect fire test of illuminating Petroleum, without the 
P, yde. 
36. An application of an ex fibers function; by J. E. Hilgard. : 
37, To find a general Proton Ag for the length o: of “Gurves of Pursuit ;” by Joseph 
38. Steam boiler Water and Incrustation ; by Jos. G. Rogers. 
3. Ly Section B.— Geology and Natural History. 
1. The Mon, on the Universal Type of Seeds; by Thomas Meehan. 
eee Classification of Echinoderms from their Microscopic Structure ; by Alex- 
. . 
3. Mechanism of Flexion and Extension in Birds’ Wings; by Elliot Coues. 
