448 Scientifie Serials. ` July. . 
trees growing over the skeletons of the Mound Builders had been in- 
geniously shown by General Harrison to indicate an antiquity of not less 
than eight hundred years. 
Boston Society or Natura History.— April 5th. Prof. A. 
Hyatt read a paper on The Relations between the Commercial Sponges 
of the Mediterranean and -Caribbean Seas. ; 
April 19th. Dr. B. Joy Jeffries remarked on Muscular Action asso- 
ciated with Vision. 
———— y 
SCIENTIFIC SERIALS.! 
Montuty MicroscoricaL JOURNAL. — May. Note on the Mark- 
ings of Navicula rhomboides, by J. J. Woodward. Some Results of a 
Microscopical Study of the Belgian Plutonic Rocks, by A. Rénard. A 
New Microscopic Slide, by E. Vanden Broeck. Measurements of Möl- 
ler’s Diatomacean Probe Platten, by E. W. Morley. — June. On the 
Markings of the Body-scales of the English Gnat and the American Mos- 
quito; by J. J. Woodward. Remarks on Frustulia saxonica, Navicula 
rhomboides, and N. crassinervis, by Charles Stodder. On the Measure- 
ment of the Angular Apertures of Object-Glasses, by Jabez Hogg. 
Tue GrocrapetcaL Macazıne. — May. The Arctic Expedition, 
vii. Prospects fo: iue Campaign of 1876. The Island of Sokotra. 
Ferghana. New Maps of Mongolia. 
PROCEEDINGS OF THE ROYAL GEOGRAPHICAL SOCIETY, LONDON. 
— February 23d. Lieutenant Cameron’s Arrival at the West Coast of 
Africa. Letters detailing the Journey of the Livingstone East Coast 
Expedition from Lake Tanganyika to the West Coast of Africa. Stan- 
ley’s Letters on his Journey to Victoria Nyanza and Circumnavigation 
of the Lake. Note on the Height of the Victoria Nyanza, by C. George. 
April 7th. Captain the Hon. G. Napier’s Journey on the aeons 
Frontier of Persia, by F. Goldzmid. Extracts from Mr. Margary s 
iary. 
CANADIAN NATURALIST, vol. viii., No. 2. On the Nipigon or Cop- 
per-Bearing Rocks of Lake Superior, etc., by J. W. Spencer. Notes 
upon the Superficial Deposits of Ontario, by D. F. H. Wilkins. New 
and Interesting Insects from the Carboniferous of Cape Breton, by S. 
H. Scudder. On the Mollusca of the Post-Pliocene Formation in Aca- 
dia, by G. F. Matthew. 
Tue GEOLOGICAL MAGAZINE. — June. The Vertical Range of 
Graptolites in Sweden, by G. Linnarsson. Correlation of the Grapto- 
litic Deposits of Sweden with those of Britain, by H. A. Nicholson. 
1 The articles enumerated under this head will be for the most part selected. 
