Agriculture probably required a far greater discipline than did any form of food collecting. Seeds had to be planted at certain seasons,… — Charles Heiser Copy Share Image
The word 'vegetable' has no precise botanical meaning in reference to food plants, and we find that almost all parts of plants have been… — Charles Heiser Copy Share Image
Agriculture probably required a far greater discipline than did any form of food collecting. Seeds had to be planted at certain seasons, some protection… — Charles Heiser Copy Share Image
