बृहत्संहिता (आचार्य वराहमिहिर - स्थापत्य, खगोल, मौसम व जल विज्ञान)

250 बृहत्संहितायाम् [Adh. XXVIII. Sl. 7-11.
विनोपघातेन पिपीलिकानामण्डोपसङ्क्रान्तिरहिन्वयवायः ।
द्रुमावरोहश्च भुजङ्गमानां वृष्टेर्निमित्तानि गवां प्लुतं च ॥७॥
Sloka 7.—Ants shifting their eggs without any
trouble, snakes mating and climbing down the trees
and cows' stampede, are signs of rain.
तरुशिखरोपगताः कृकलासा गगनतलस्थितदृष्टिनिपाताः ।
यदि च गवां रविवीक्षणमूर्ध्वं निपतति वारि तदा नचिरेण ॥८॥
Sloka 8.—If the chameleons perched on the tops of
trees fix their gaze on the firmament, and cows look
up towards the Sun, there will be rain without much
delay.
नेच्छन्ति विनिर्गमं गृहाद्धुन्वन्ति श्रवणान् खुरानपि ।
पशवः पशुवच्च कुक्कुरा यद्यम्भः पततीति निर्दिशेत् ॥९॥
Sloka 9.—If the domestic animals such as cows are
reluctant to go out of the house and shake their ears and
hoofs, or, if the dogs behave in the same manner, it
should be declared that there will be rainfall soon.
यदा स्थिता गृहपटलेषु कुक्कुरा रुदन्ति वा यदि विततं वियन्मुखाः ।
दिवा तडिद्यदि च पिनाकिदिग्भवा तदा क्षमा भवति समैव वारिणा ॥
Sloka 10.—When dogs stand on the roofs of houses,
or bark continuously looking up towards the heavens, or
when lightning is seen flashing from the north-east at
day-time, then the earth will be completely filled with
water.
शुककपोतविलोचनसन्निभो मधुनिभश्च यदा हिमदीधितिः ।
प्रतिशशी च यदा दिवि राजते पतति वारि तदा नचिरेण च ॥११॥