846 INDEX TO FIGURES 



MM 



Leeuwenhoek, portrait of 666 



Leonardo da Vinci, anatomy of vascular system 668 



,, experiment on heart beat 669 



,, mirror image of writing 670 



Leucocyte, fixed (Schafer) - 2 



Life history in inorganic system 4 



Light of firefly, spectra of (Coblentz) 596 



Lipase and fat .synthesis (Armstrong and Gosney) - 300 



" Lipoids," effect of, on hypodynamic heart (Clark) _ 1 '1 



Living muscle fibre, photomicrograph of (Engelmann) 438 



,, nerve cells under ultramicroscope (Marinesco) 470 



Lizzia, eye of (Hertwig) 516 



Local reaction of blood vessels to fall of pressure 701 



warming and cooling, effect of, on electro-cardiogram 653, 655 



Loven reflexes 696 



Ludwig, portrait of - 685 



M 



Mammalian circulation, diagram of 672 



Mammary gland, growth produced by corpus luteum (Ancel et Bouin) 717 



Mayow, portrait of - 601 

 Mechanical and electrical effects in heart, relative duration 539, 540, 658 



Mechanism of tonus muscle, model to illustrate 535 

 Mendelian inheritance (Bateson) - 293, 294 



Merchiston Tower - 40 



Micro-organisms of root tubercles (Dawson) 251 



Micro-respirometer ( Winters tein) 607 



Milk, secretion of, produced by pituitary extract (Mackenzie) 718 



Muscle fibre, living, under polarised light - 438 



with contraction wave (Engelmann) - 437 



N 



Napier of Merchiston, portrait of 39 



Nerve cells, living, under ultramicroscope (Marinesco) 470 



fibres, growth in vitru (Ross Harrison) L'3 



Nervous system, evolution of 468 



of earthworm, diagram of - 467 



Neuro-muscular mechanism, diagram of differentiation of (Parker) 466 



Nitrogen cycle, diagram of - 250 



Ocellus of Lizzia (Hertwig) 516 



Origin of pyramidal tract (Holmes and May) 479 



surface tension from internal pressure 50 



Osmometer (Morse) 153 



Osmotic pressure in cambium cells - 117 



,, relation to vapour pressure (Arrhenius) - 154 



