( To face p. 429. 



BLOOD-SPECTRA COMPARED WITH SOLAR SPECTRUM. 



1. Solar Spectrum. 



2. Spectrum of dilute solution of oxyhaemoglobin. 



3. ,, ,, haemoglobin. 



4. ,, ,, carbonic oxide haemoglobin. 



5. ,, ., acid haematin in ethereal solution. 



6. ,, ,, alkaline haematin. 



7. ,, ,, methaemoglobin. 



8. ,, haemochromogen. 



0. ,, ,, acid haematoporphyrin. 



