250 Contents 



The Dextrans . 300 



(a) Occurrence and Nature 300 



(b) Occurrence of Dextranases 301 



(1) In the Vegetable Kingdom 301 



(2) In the Animal Kingdom 302 



(c) Digestion and Utilization by Animals and Man 302 



III. EXPERIMENTAL PART. 

 Introduction 306 



Chemical Investigations. 



General Methods 307 



Pentosan Preparations 309 



(a) Dulse (Rhodymenia palmata) 309 



(b) Hawaiian Seaweeds 313 



(1) Limu Lipoa {Haliseris pardalis) 313 



(2) Lunu Eleele (Enteromorpha intestinalis) 313 



(3) Limu Pahapaha {Ulza lacluca, etc) 314 



Galactan Preparations 314 



(a) Irish Moss {Chrondus crispus) 314 



(b) Hawaiian Seaweeds 316 



(1) Limu Manauea {Gracilaria coronopifolia) 316 



(2) Limu Huna {Hypnea nidifica) 316 



(3) Limu Akiaki {Ahnfeldtia concinna) 316 



(4) Limu Uaualoli (Gynmogongrus vertnicularis Americana, 

 etc) 316 



(5) Limu Kohu (Asparagopsis sanfordiana) 316 



(c) Slippery Elm {Ulnius fulva) 317 



A Mannan Preparation — Salep {Orchis) 318 



A Levulan Preparation — Sinistrin (from Scilla Marilima) 321 



Summary 322 



bacteriological investigations. 



Introduction 323 



Trials with pure cultures of aerobes 324 



Trials with mixtures of aerobes 325 



Trials with anaerobes 327 



Discussion and summary 328 



l'HYSIOLOGIC.\L INVESTIGATIONS. 



Introduction 331 



Experiments with Enzymes 332 



Parental Injections 332 



(a) Methods and Technique 332 



