The Technical World Magazine, Volume 15Technical World Company, 1911 |
From inside the book
Results 6-10 of 55
Page 159
... eggs yielded by the egg lobster reach the fourth stage of development . As their most precarious period of existence is during the first three stages , the fourth stage lobsters have an infinitely greater chance to sur- vive against the ...
... eggs yielded by the egg lobster reach the fourth stage of development . As their most precarious period of existence is during the first three stages , the fourth stage lobsters have an infinitely greater chance to sur- vive against the ...
Page 160
PLANTING FOURTH STAGE LOBSTERS . METHOD OF SCATTERING LOBSTER EGGS . The eggs are placed on the floating slats of ... egg lobster 8,000 fourth stage lobsters were produced . The probability of reducing the cost of this highly prized sea ...
PLANTING FOURTH STAGE LOBSTERS . METHOD OF SCATTERING LOBSTER EGGS . The eggs are placed on the floating slats of ... egg lobster 8,000 fourth stage lobsters were produced . The probability of reducing the cost of this highly prized sea ...
Page 173
... eggs of some insect that thrives upon that fruit are brought along unnoticed . In its natural habitat that particular insect probably did no notice- able damage , because its natural check kept it within bounds ; but in its new ...
... eggs of some insect that thrives upon that fruit are brought along unnoticed . In its natural habitat that particular insect probably did no notice- able damage , because its natural check kept it within bounds ; but in its new ...
Page 175
... eggs in the grub of the injurious insect ; and when the young develop they feed upon the tissues of the host , killing it in embryo . Through the operations of these pre- daceous ladybirds and internal parasites , the cottony cushion ...
... eggs in the grub of the injurious insect ; and when the young develop they feed upon the tissues of the host , killing it in embryo . Through the operations of these pre- daceous ladybirds and internal parasites , the cottony cushion ...
Page 178
... eggs in those of the scales . Then the trees are boxed up again , conveyed to the sea- coast , shipped across the ocean in cold storage , and taken to the State Insectary . There the trees are unboxed and placed in a breeding room ...
... eggs in those of the scales . Then the trees are boxed up again , conveyed to the sea- coast , shipped across the ocean in cold storage , and taken to the State Insectary . There the trees are unboxed and placed in a breeding room ...
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