Bulletin . to a mixture ofcarbon monoxide ( cc. per liter) and ethylene ( cc. of ethylene). Graph 54 shows the reaction- of two suckers to the same solution as in graph 53. Graph 55 shows the reaction of an individual (Airamis) to ammonia in alkaline\ atcr. The fish was positive, as in acid water. , Graph 56 shows the reaction of a large-mouthed black bass to paracresol inalkaline water. The general result is the same as in acid water. Graph 57 shows the reaction of an orange-spotted sunfish to orthocresol in alka-line water. The fish was positive, as in the acid water. Graph 57 shows th
Bulletin . to a mixture ofcarbon monoxide ( cc. per liter) and ethylene ( cc. of ethylene). Graph 54 shows the reaction- of two suckers to the same solution as in graph 53. Graph 55 shows the reaction of an individual (Airamis) to ammonia in alkaline\ atcr. The fish was positive, as in acid water. , Graph 56 shows the reaction of a large-mouthed black bass to paracresol inalkaline water. The general result is the same as in acid water. Graph 57 shows the reaction of an orange-spotted sunfish to orthocresol in alka-line water. The fish was positive, as in the acid water. Graph 57 shows the reaction of an orange-spotted sunfish to phenol in alkalinewater. This and other fishes are positive, as in acid water. Graph 58 shows the positive reaction of an orange-spotted sunfish to naphthalenein alkaline water. Graph 59 shows the positive reaction of a large-mouthed black bass to toluenein alkaline water. Graph 60 shows the positive reaction of a blue-gill to gas waste in alkaline water. Chart Bulletin OF THE Illinois State Laboratory oir Natural History Urbana, Illinois, U. S. A. STEPHEN A. FORBES, Ph. D., L,. L. Vol. XI. November, 1917 Article VII. SOME EDIBLE AND POISONOUS MUSHEOOMS BY Walter B. McDougall, Ph. D. CONTENTS PAGE Introiliietion 413 Mushrooms ami toadstools 414 The mushroom plant 414 Life history and development 414 Structure of a mushroom 417 Spore production and lilioration 417 Other typos of mushrooms 419 The ecology of mushrooms 420 Dissemination 420 Gravity 421 Air 421 Heat 421 Light 422 Substratum 422 Water 422 Parasites and saprophytes 423 Myeorrhizas 424 Animal relations Diseases 427 Fairy rings 427 Luminosity 427 Mushroom glowing 429 Food value of mushrooms 430 Poisonous properties of mushrooms 430 Collecting wild mushrooms 431 The preparation of mushrooms for the talilo 433 The classification of mushrooms 435 Use of the key 436 Key to genera of gill fungi 437 Descriptions of species 440 References 554 Index to 555 ArTicli;
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