116 BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1906-1907. 
Kunz, George F., and Washington, Henry S. 
1444. Occurrence of diamonds in Arkansas. — U. S. Geo]. Survey. Mineral 
Resources for 1906, pp. 1247-1251. 1907. 
1445. Note on the forms of Arkansas diamonds. — Am. Jour. Sci., 4th ser., 
vol. 24, pp. 275-276, September, 1907. 
Lacroix, A. 
1446. Sur quelques productions boueuses accompagnant les eruptions de la 
Montague Pelee. — Revue gen. d. Sci. pures et appliquees. t. 14, no. 3. pp. 115- 
110. 2 pis., February 15, 1903. 
Discusses mud flows accompanying the eruptions of Mont Pele. 
1447. L'eruption de la Martinqiue. — Soc. de Secours des Amis des Sciences, 
Bull., pp. 49-03, 1903 [not seen] ; Revue scientifique, 4 e ser., t. 20. no. 22. pp. 
<;74-0S6, 1903. 
1448. Les dernieres eruptions de Saint-Vincent. — Annales de Geographic, 
Ann. 12. pp. 261-268, 3 pis.. May 15, 1903. 
1449. Sur le gisement de la calcedoine et des bois silicifies de la Martinique. — 
Soc. franchise de Mineral., Bull., t. 26, no. 6, pp. 150-152, June, 1903. 
Gives notes upon the occurrence of minerals upon the Island of Martinique. 
1450. Sur la production de roches quartziferes an cours de l'eruption actuelle 
de la Montague Pelee. — Acad. d. Sci., Paris, Compt. rendu, t. 138. pp. 792-797. 
March 28, 1904. 
Discusses the formation of quartz-bearing eruptive rocks. 
1451. Le mode de formation d'un dome volcanique et la cristallisation 
des roches eruptives quartziferes, d'apres les observations faites an cours de 
l'eruption de la Montague Pelee. — Revue gen. d. Sci. pures et appliquees, t. 10, 
no. 7. pp. 301-315, 8 figs., April 15, 1905. 
Discusses the mode of formation of the "spine" of Mont Pele. 
1452. Sur un gisement de redondite a la Martinique.— Soe. franeaiso de 
Mineral., Bull., t. 28, pp. 13-10. 1905. 
Describes the occurrence and character of a deposit of redonditp on the const of Mar- 
1 inique. 
1453. Observations faites a la Montague Pelee sur les conditions presidanl 
a la production de la tridymite dans les roches volcaniques. — Soc. frangaise de 
Mineral.. Bull., t. 28, pp. 56-60, 1905. 
Discusses the formation of certain volcanic rocks. 
1454. Le sulfate de soude des fumerolles secondaires a haute temperature 
de la Montagne Pelee. — Soc. francaise de Mineral., Bull., t. 28, pp. 60-68, 1905. 
Describes the character and action of fumaroles following- the eruption of Mont Tele, 
and sulphate of soda produced in these fumaroles. 
1455. Contributions a Fetude des breches et des conglomerats volcaniques 
(Antilles 1902-1903, Vesuve 1906).— Soc. geol. de France, Bull.. 4 e ser., t. 6. pp. 
635-685, 4 pis., 11 figs., 1907. 
Discusses the formation of the "spine" of Mont Pele. and the constitution of the 
rocks erupted. 
1456. Sur la constitution mineralogique du dome recent de la Montagne 
Pelee.— Acad. d. Sci., Paris, Compt. rend., t. 144, pp. 169-173, 1907. 
Discusses the constitution of the recent " spine " of Mont Pele\ 
Laflarame, J. C K. 
1457. Les trembleinents de terre de la region de Quebec. — Canada, Roy. Soc, 
Proc. and Trans., 3d ser., vol. 1. sect. 4, pp. 157-183, 1 fig., 1907. 
Gives a list of earthquakes, with notes, that have taken place in Quebec. 
