Encyclopædia Britannica: A New Survey of Universal Knowledge, Τόμος 11Walter Yust Encyclopædia britannica, Incorporated, 1947 |
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Σελίδα 33
... tion , with a megaspore at its cen- tre and a few pollen grains on the nucellus . The micropyle soon closes and the cone enlarges very little during the first season , dur- ing which the ovules also remain small . B shows the winter ...
... tion , with a megaspore at its cen- tre and a few pollen grains on the nucellus . The micropyle soon closes and the cone enlarges very little during the first season , dur- ing which the ovules also remain small . B shows the winter ...
Σελίδα 979
... tion . If the substance to be treated is a gas or vapour at the temperature employed , a mix- ture of the substance with excess of hydrogen is passed over the catalyst contained in a tube or distilling flask as shown in fig . 1 . FIG ...
... tion . If the substance to be treated is a gas or vapour at the temperature employed , a mix- ture of the substance with excess of hydrogen is passed over the catalyst contained in a tube or distilling flask as shown in fig . 1 . FIG ...
Σελίδα 998
... tion the patient succumbs , death taking place either in a paroxysm of choking or from exhaustion , all the symptoms having abated and the power of swallowing returned before the end . The dura- tion of the disease from the first ...
... tion the patient succumbs , death taking place either in a paroxysm of choking or from exhaustion , all the symptoms having abated and the power of swallowing returned before the end . The dura- tion of the disease from the first ...
Άλλες εκδόσεις - Προβολή όλων
Encyclopædia Britannica: A New Survey of Universal Knowledge, Τόμος 11 Walter Yust Προβολή αποσπασμάτων - 1956 |
Συχνά εμφανιζόμενοι όροι και φράσεις
16th century American appeared appointed archegonia army axis basilar membrane battle became born bract breakwater British cells centre century Charles chief church coast command cones conifers Cotyledons court Cupressaceae cycads death died district earl early east edition educated embryo embryogeny England English entrance French genera German Gustavus gymnosperms Gypsies gyro gyroscope Habsburg hair Hall hallucinations Hamburg Hamilton Handel Hannibal harbour Hastings Hausa Hawaiian important India industry island John king known land later Leipzig London Lord Lübeck manufacture ment nucellus original ovules Paris poems political pollen pollen tube polyembryony port president province published railway river Roman scale seed shelter ship species sporophylls sq.mi studied suspensor Taxodiaceae tion town trade tube usually uterus William