45 



137. General collection of fossils. 



E. 50. 1862. Presented by the Belgian Government. 



Two open trays with 100 fixed compartments, with paper- 

 covered partitions. Small specimens. 



138. Collection of minerals and rocks to illustrate 

 lessons in elementary schools. 



E. 105. 1862. Presented by the Belgian Government. 



Consists of two trays, each divided into compartments by 

 green paper partitions 1J in. square. The minerals are mostly 

 massive ; a few of the specimens are rocks. 



139. Collection of minerals and rocks to illustrate 

 lessons in elementary schools. 



E. 104. 1862. Presented by the Belgian Government. 



Four cardboard trays in 25 fixed compartments each, The 

 size of compartments is 2^ in. by 2J in., or 2J in. by 3 in. More 

 than half of the specimens are rocks. 



140. Collections of thin sections of minerals and rocks, 

 and of other microscopical objects, for use in geological 

 teaching. 



E. 33. 1891. 



8ets of microscopic slides for the use of teachers of Physio- 

 graphy, Geology, and Biology (similar to those used in the 

 Geological Division of the Royal College of Science, 

 London). 

 Series A. Six slides illustrating Physiography, in cloth case. 



1. Foraminiferal sand. 4. Diatomaceous earth. 



2. Globigerina-ooze. 5. Volcanic dust. 



3. Radiolarian-ooze. 6. Desert-sand. 



Series B. 12 slides illustrating Physiography, in cloth case. 



1. Capillary volcanic ash. 6. Angular sand. 



2. Volcanic dust. 7. Diatomaceous earth. 



3. Crystalline sand. 8. Marine diatoms. 



4. Crystalline sand (cleaned) 9. Radiolarians. 



in balsam. 10. Foraminiferal sand. 



5. Desert -sand (rounded 11. Globigerina-ooze. 



grains). 12. Glauconite-grains. 



Series C. 12 slides of typical igneous rocks, cloth case. 



1. Granite. 7. Diorite. 



2. Quartz-felsite. 8. Andesite. 



3. Bhyolite. 9. Phonolite. 



4. Obsidian. 10. Gabbro. 



5. Syenite. 11. Basalt. 



6. Trachyte. 12. Serpentine. 



U 69149. TV 



