2 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. 
Bicosceca, 2, 20. 
Binary granite, 4, 17. 
Biotite, composition of, 4, 40. 
Bischof, K. G., 4, 36. 
Bishop, L. B., 1, 12. 
Black-spored agarics, key to, 3, 
20. 
Blasting of tough clay, 4, 41. 
Blepharisma, 2, 53, 54. 
Blochmann, F., 2, 
Bodo, 2, 30. 
Bolbitius, 3, 18, 43. 
Boletinus, 3, 54, 56. 
Boletus, 3, 54, 56. 
Bowlder clay, 4, 18. 
Bowlders in clay, 4, 23, 27. 
Branchville, feldspar from, 4, 72. 
Brick, burning of, 4, 83, 85. 
drying of, 4, 82, 83. 
manufacture of, 4, 73. 
manufacturers of, 4, 92. 
varieties of, 4, 51, 65, 86. 
Brick elas 4, 36, 42, 45, 54, 59, 
0. 
Brick machines, 4, 76. 
Broad Brook, 4, 12. 
‘Brooklyn, Conn., clay deposit 
at, 4, 15. 
Brown-spored agarics, key to, 3, 
19. 
Buff brick, 4, 54. 
Burned clay, black color of, 4, 
32. 
used for tempering, 4, 54, 75. 
Burning of brick, 4, 83. 
blistering during, 4, 33. 
cracking during, 4, 42. 
shrinkage during, 4, 47. 
Bursaria, 2, 53, 55. 
Calcite, composition. of, 4, 40. 
Calyptotricha, 2, 42. 
Camden, N. J., 4, 71. 
Campascus, 2, 13. 
Cantharellus, 3, 18, 35. 
Carbon dioxide, action of, on 
calcium carbonate in 
brick, 4, 35. 
effect of. on burning brick, 
4, 34, 38, 86. 
Carbonaceous particles in clay, 
4, 38. 
‘Carbonate of calcium, 4, 34, 35, 
59, 60, 61, 65 
of iron, 4, 32, 33. 
‘of. magnesium, 4, 36, 65. 
of sodium, 4, 39. 
Carchesium, 2, 62, 64. 
Carteria, 2, 33. 
Centropyxis, 2, 12, 15. 
Cephalothamnium, 2, 21, 23. 
Ceratium, 2, 39. 
Cercobodo, 2, 20, 21. 
Cercomonas, 2, 20, 22. 
Chenia, 2, 40, 43. 
Chemistry of clays, 4, 29. 
Cheshire, high gravels at, 4, 23. 
Chilodon, 2, 42, 52. 
Chilomonas, 2, 32, 35. 
China clays, 4, 32, 51. 
Chlamydomonas, 2, 33, 37. 
Chlorangium, 2, 33, 37. ; 
Chlorides of alkalies in clay, 4, 
37. 
Chiorite, composition of, 4; 38, 
40. 
origin of, in clay, 4, 17. 
plasticity of, 4, 45, 46. 
presence of, in Connecticut 
clays, 4, 59, 60. 
Chlorogonium, 2, 33 
Chloropeltis, 2, 25,. 28. 
Choanoflagellata, 2, 19, 38. 
Chromulina, 2, 24. 
Chrysopyxis, 2, 33. 
Ciliata, 2, 11, 39. 
Ciliophrys, 2, 20. 
Cinetochilum, 2, 41, 50. 
Cintractia, 5, 23. 
_ Caricis, 5, 24. , 
Cyperi, 5, 23. 
Junci, 5, 25. 
Montagnei, 5, 24. 
Cladomonas, 2, 34. 
Clarke, F. W., 4, 58. 
Clathrulina, 2, 17, 18. 
Clavaria, 3, 73. 
Clavariacee, key to. the genera 
of, 3, 73. 
Clay, affinity of, for water, 4, 46. 
alluvial, 4, 19. 
amount of iron requisite for 
coloration of, 4, 32. 
analyses of, 4, 59, 60. 
chemistry of, 4, 29. 
classification of, 4, 16, 51. 
color of, 4, 25, 32, 39, 41, 47. 
concretions in, 4, 27. 
contortions in, 4, 13, 26. 
definition of, 4, 16. 
density of 4, 41, 42, 43. 
deposited by wind, 4, -21. 
deposition of, in Berlin lake, 
4, 24. 
