Mirages 86 
Montgolfier brothers 100 
Moon 189 
Mussels 177 
Nebula 161 
Neptune 152 
Newton, I. 47, 137, 141 
Newton’s laws of motion 8 
Noctiluca 389 
Northern lights 105 
Nova 161 
Ocean, age of 72 
bottom earthquakes 10 
volcano 12 
Oceanography 23 
Ooze 27 
Optical haze 88 
Osmosis 386 
Pacific Ocean 12 
Paleozoic era 76 
Pancake ice 53 
Parhelic circle 96 
Pelicans 186 
Penguins 195-197 
Perspective 85 
Phosphorescence 10, 39 
Photography of lightning 123 
Pillar of light 96 
Planets, order of 142 
Plankton 27 
Plato 71 
Pleistocene epoch 77 
Plimsoll marks 387 
Pluto 152 
Poe Fh: A. 62 
Polar ice 54 
Polynesian navigators 10 
Pooping 18 
Porpoises 166 
Portuguese man-of-war 173 
Pressure in ocean depths 31 
Index 
Princess 70 
Prominences 157 
Proterozoic era 76 
Pteropod 29 
Radioactive time scale 74 
Radiolarian 29 
Rainbow 89 
Rate of sedimentation 31 
Red clay 30 
Reflection 82 
Refraction 83 
Remora ° 170 
Rime 55 
Ripples 38, 14 
on bottom 26 
River ice 51 
Rocks and shoals 
on old charts 10 
Ross, James 69 
Salt 383, 36 
Sand dollars 180, 181 
Sargasso Sea 61 
Saturn 152 
Scattering of light 84 
Schliemann, Henry 71 
Scylla 62 
Sea breeze 129 
butterflies 30 
horse 174 
ice 52 
lions 167 
pens 183 
scallops 172 
Seals 166 
Seiches 15 
Seismology 144 
Shark 169 
teeth 30 
Sheet lightning 124, 125 
Ship’s wake 16 
Shore building 64 
Silica 29 
11, 63 
207 
