1. 1.N by E of Praya, St Jago, Cape Verde Islands: CD164 phonolite
   

2. 2.Saint Paul’s Rock, Atlantic: CD248 breccia of dunite cemented in carbonate
   

3. 3.Fernando de Noronha: CD261 amygdaloidal monchiquite dyke
   

4. 4.South of Bahia, Brazil: CD311 myrmekitic granulite/charnockite
   

5. 5.Abrolhas Islets, off the coast of Brazil: CD399 feldspathic sandstone
   

6. 6.Rio de Janeiro, Brazil: CD468 garnet-biotite-bearing augen-gneiss
   

7. 7.Off the summit of Mount Montevideo, Uruguay: CD660 hornblende schist
   

8. 8.Port Desire, Patagonia, Argentina: CD1639 altered rhyolitic welded tuff
   

9. 9.Wollaston Island, Tierra del Fuego: CD1857 cordierite slate, CD1860 garnet-prehnite skarn, CD1861 garnet-epidote-prehnite skarn
   

10. 10. New Island, Falklands Islands: CD1888 impure quartzite
    

11. 11. Straits of Magellan, Chile: CD2079 hornblende diorite
    

12. 12. Chiloe Island, Chile: CD2118 carbonated palagonite tuff
    

13. 13.Valparaiso, Chile: CD2142 hornblende porphyrite
    

14. 14.Lima, Peru: CD3149 welded tuff
    

15. 15.James Island, Galapagos: CD3267 andesite, CD3268 trachyte
    

16. 16.Central Tahiti: CD3377 olivine basalt
    

17. 17.W coast of North Island, New Zealand: CD3408 foraminiferal limestone
    

18. 18.Blue Mountains, New South Wales, Australia: CD3438 hornblende porphyrite
    

19. 19.Stobart, Tasmania: CD3467 nepheline basanite with iddingsite
    

20. 20.King’s George Sound - no sample
    

21. 21.Keeling Island - no sample
    

22. 22.Mauritius: CD3621 porphyritic olivine basalt
    

23. 23.Cape Town, South Africa: CD3668 granite in contact with mica schist
    

24. 24.Saint Helena: CD3704 trachyte, CD3717 consolidated beach sand containing volcanic detritus
    

25. 25.Ascension Island: CD3774 volcanic ash
    

26. 26.Terceira, Azores: CD3914 vesicular basalt

© Sedgwick Museum for all Darwin images